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Onerous synonyms

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Exercising power arbitrarily and often unjustly; tyrannical.
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  1. Exercising power arbitrarily and often unjustly; tyrannical.
  2. Burdensome or difficult to bear.
  3. Difficult to cope with; causing hardship or depressed spirits:
Causing hardship or distress.
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  1. Causing hardship or distress.
  2. Weighing much or hard to carry; heavy.
  3. Hard to bear; heavy; oppressive
Hard to endure; oppressive; burdensome; distressing
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  1. Hard to endure; oppressive; burdensome; distressing
  2. (Theater) Serious, tragic, or villainous
  3. Hard to digest
Concerned with important rather than trivial matters:
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  1. Concerned with important rather than trivial matters:
  2. Deeply interested or involved:
  3. Not easily answered or solved:
Requiring precise accuracy
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  1. Requiring precise accuracy
  2. Demanding great care, patience, effort, etc.; arduous
  3. Making excessive demands; hard to satisfy.
Requiring others to work hard or meet high expectations:
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  1. Requiring others to work hard or meet high expectations:
  2. Requiring much effort or attention:
  3. Making difficult or irksome demands on a person's resources, patience, energy, etc.
  1. Vexing, humiliating
  2. Chafing; very annoying; irritating; vexing
  3. Causing extreme irritation or chagrin; vexing:
Characterized by or causing trouble, irritation, difficulty, distress, inconvenience, etc.
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  1. Characterized by or causing trouble, irritation, difficulty, distress, inconvenience, etc.
  2. Giving trouble or anxiety; vexatious; burdensome; wearisome.
Arousing fear, dread, or alarm:
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  1. Arousing fear, dread, or alarm:
  2. Difficult to undertake, surmount, or defeat:
  3. Hard to handle or overcome
Of or pertaining to the act or sound of grinding.
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  1. Of or pertaining to the act or sound of grinding.
Marked by or requiring long, hard work:
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  1. Marked by or requiring long, hard work:
  2. Mentally difficult; painstaking
  3. Involving or calling for much hard work; difficult
Vigorously active; energetic or zealous:
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  1. Vigorously active; energetic or zealous:
  2. Requiring great effort, energy, or exertion:
(Obsolete) Moving or progressing very slowly.
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  1. (Obsolete) Moving or progressing very slowly.
  2. Tiresome by reason of length, slowness, or dullness; boring.
  3. Full of tedium; long or verbose and wearisome; tiresome; boring
Annoying; irksome
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  1. Annoying; irksome
  2. Causing fatigue or boredom; wearisome.
  3. Tiring; boring; tedious
Difficult to endure; causing hardship or suffering:
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  1. Difficult to endure; causing hardship or suffering:
  2. Using or based on data that are readily quantified or verified:
  3. Bitter or resentful:
Using much energy; strenuous
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  1. Using much energy; strenuous
  2. Difficult to do; laborious; onerous
  3. Hard to traverse, climb, or surmount.
Progressing slowly and laboriously.
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  1. Progressing slowly and laboriously.
Requiring great physical exertion
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  1. Requiring great physical exertion
  2. (Figuratively) Of work, very physically tiring.
Alternative spelling of gruelling.
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  1. Alternative spelling of gruelling.
  2. Physically or mentally demanding to the point of exhaustion:
  3. Extremely trying; exhausting
Characterized by or requiring toil.
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  1. Characterized by or requiring toil.
  2. Requiring continuous physical effort; laborious.
  3. Requiring or involving toil; laborious
Hard to handle or deal with as because of size, weight, or complexity; burdensome; unwieldy; clumsy
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  1. Hard to handle or deal with as because of size, weight, or complexity; burdensome; unwieldy; clumsy
  2. Not easily managed or handled; awkward.
  3. Hard, difficult, demanding to handle or get around with.
Rigorous; severe; afflictive.
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  1. Rigorous; severe; afflictive.
  2. Having much weight; very heavy; ponderous
  3. Adapted to turn the balance in the mind, or to convince; important; forcible; serious; momentous.
Difficult to maneuver or control because of great bulk or weight:
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  1. Difficult to maneuver or control because of great bulk or weight:
  2. That seems heavy; bulky; massive
  3. Slow or difficult to manage, especially because of complexity:
Able to distinguish between right and wrong and to think and act rationally, and hence accountable for one's behavior
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  1. Able to distinguish between right and wrong and to think and act rationally, and hence accountable for one's behavior
  2. That can be charged with being the cause, agent, or source of something
  3. Based on or characterized by good judgment or sound thinking:
Rigidly precise; thoroughly accurate or exact
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  1. Rigidly precise; thoroughly accurate or exact
  2. Characterized by or adhering to strict standards or methods; exacting and thorough:
  3. Harsh, severe, or demanding:
Serious or grave; forbidding, as in expression or manner
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  1. Serious or grave; forbidding, as in expression or manner
  2. Unsparing, harsh, or strict, as in treatment of others:
  3. Extremely difficult to perform or endure; trying:
Causing or creating vexation; annoying:
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  1. Causing or creating vexation; annoying:
  2. Characterized by or causing vexation; annoying, troublesome, etc.
  3. (Law, of an action) Commenced for the purpose of giving trouble, without due cause.
Disagreeable to one of the senses, as:
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  1. Disagreeable to one of the senses, as:
  2. Too strong to the taste; bitter
  3. Severe, cruel, or exacting:
Marked by or requiring great care and diligence:
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  1. Marked by or requiring great care and diligence:
  2. Requiring care and labor; difficult or irksome:
  3. Full of or giving pain:
That overpowers; so strong as to be overwhelming.
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  1. That overpowers; so strong as to be overwhelming.
  2. So strong as to be overwhelming:
Overwhelming or decisive
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  1. Overwhelming or decisive
  2. Hurtful or demoralizing
Exceeding a normal, usual, reasonable, or proper limit.
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  1. Exceeding a normal, usual, reasonable, or proper limit.
  2. Characterized by excess; being too much or too great; immoderate; inordinate
Having no mercy; cruel.
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  1. Having no mercy; cruel.
  2. Showing no mercy; cruel and pitiless
  3. Without mercy; having, feeling, or showing no mercy; pitiless, cruel, implacable, etc.
Burdensome; wearing:
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  1. Burdensome; wearing:
  2. With respect to an experience: exhausting; draining.
  1. Insistent, earnest, or persistent.
  2. Persistent in request or demand; insistent
  3. Demanding immediate attention; urgent:
Impossible to tolerate or endure; unbearable:
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  1. Impossible to tolerate or endure; unbearable:
  2. Not tolerable; unbearable; too severe, painful, cruel, etc. to be endured
Severe or stern in disposition or appearance; somber and grave:
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  1. Severe or stern in disposition or appearance; somber and grave:
  2. Strict or severe in discipline; ascetic:
  3. Having a severe or stern look, manner, etc.; forbidding
Causing annoyance, weariness, or vexation:
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  1. Causing annoyance, weariness, or vexation:
  2. That tends to irk; tiresome or annoying
  3. Disagreeable or troublesome by reason of long continuance or repetition; bothersome; annoying; irritating; wearisome; tedious.
Causing grief
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  1. Causing grief
  2. Very serious; deplorable
  3. Causing suffering; hard to bear; severe
That causes great grief, anguish or distress.
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  1. That causes great grief, anguish or distress.
  2. Producing a strong emotional reaction:
  3. Causing overwhelming grief or distress.
Causing pain or misery
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  1. Causing pain or misery
  2. That causes physical or mental pain
Using much energy; strenuous
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  1. Using much energy; strenuous
  2. Hard to traverse, climb, or surmount.
  3. Difficult to do; laborious; onerous
Requiring great physical exertion
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  1. Requiring great physical exertion
  2. (Figuratively) Of work, very physically tiring.
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  1. Of or like a burden; arduous or demanding
  2. Weighing much or hard to carry; heavy.
  3. Hard to bear; heavy; oppressive
Requiring others to work hard or meet high expectations:
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  1. Requiring others to work hard or meet high expectations:
  2. Requiring much effort or attention:
  3. Making difficult or irksome demands on a person's resources, patience, energy, etc.
Not easy to endure; full of hardship or trouble; trying:
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  1. Not easy to endure; full of hardship or trouble; trying:
  2. Hard to satisfy, persuade, please, etc.
  3. Not easy to comprehend, solve, or explain:
Requiring or showing effort.
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Requiring precise accuracy
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  1. Requiring precise accuracy
  2. Demanding great care, patience, effort, etc.; arduous
  3. Making excessive demands; hard to satisfy.
Calling for immediate action or attention; urgent; critical
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  1. Calling for immediate action or attention; urgent; critical
  2. Having or making urgent demands; demanding:
  3. Requiring immediate action; pressing:
Inspiring awe, admiration, or wonder:
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  1. Inspiring awe, admiration, or wonder:
  2. Difficult to undertake, surmount, or defeat:
  3. Hard to handle or overcome
Harsh or severe in effect or intention:
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  1. Harsh or severe in effect or intention:
  2. Difficult to endure; causing hardship or suffering:
  3. Marked by stubborn refusal to compromise or yield; uncompromising:
Hard to do or manage; difficult
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  1. Hard to do or manage; difficult
  2. Hard to do or accomplish; arduous:
  3. Hard to digest
Marked by or requiring long, hard work:
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  1. Marked by or requiring long, hard work:
  2. Involving or calling for much hard work; difficult
  3. Mentally difficult; painstaking
Hard to put up with; causing great discomfort or fatigue
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  1. Hard to put up with; causing great discomfort or fatigue
  2. Burdensome or difficult to bear.
  3. Difficult to cope with; causing hardship or depressed spirits:
Characterized by or adhering to strict standards or methods; exacting and thorough:
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  1. Characterized by or adhering to strict standards or methods; exacting and thorough:
  2. Rigidly precise; thoroughly accurate or exact
  3. Harsh, severe, or demanding:
Regarded as being risky, dangerous, offensive, etc., often as a result of lacking in conventional social controls
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  1. Regarded as being risky, dangerous, offensive, etc., often as a result of lacking in conventional social controls
  2. Difficult to endure or live through, especially because of harsh or inclement weather:
  3. Difficult to travel over or through:
Causing great discomfort, damage, or distress:
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  1. Causing great discomfort, damage, or distress:
  2. Unsparing, harsh, or strict, as in treatment of others:
  3. Extremely difficult to perform or endure; trying:
Burdensome; wearing:
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  1. Burdensome; wearing:
  2. With respect to an experience: exhausting; draining.
Difficult to endure; severe; harsh:
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  1. Difficult to endure; severe; harsh:
  2. Hard to cut or chew:
  3. Very difficult; toilsome
  1. Irritating, stressful or bothersome.
  2. That tries one's patience; annoying; exasperating; irksome
  3. Difficult to endure; arduous.
Of great consequence; serious or momentous:
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  1. Of great consequence; serious or momentous:
  2. Having much weight; very heavy; ponderous
  3. Adapted to turn the balance in the mind, or to convince; important; forcible; serious; momentous.

Synonym Study

  • Exacting suggests the making of great demands on the attention, skill, care, etc. an exacting supervisor, exacting work
  • Oppressive suggests a hardship that weighs heavily on the mind, spirits, or senses, or stresses the overbearing cruelty of the person or thing that inflicts the hardship oppressive weather, an oppressive king
  • Burdensome applies to that which is wearisome or oppressive to the mind or spirit as well as to the body burdensome responsibilities
  • Onerous applies to that which is laborious or troublesome, often because of its annoying or tedious character the onerous task of taking inventory
Find another word for onerous. In this page you can discover 73 synonyms, antonyms, idiomatic expressions, and related words for onerous, like: oppressive, burdensome, heavy, serious, exacting, demanding, galling, troublesome, formidable, grinding and laborious.