Serious Synonyms and Antonyms

sîr'ē-əs

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Synonyms for Serious

The definition of grave is something that is serious or taken seriously or doing something in a solemn or sedate manner.
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Ardent in the pursuit of an object; eager to obtain or do; zealous with sincerity; with hearty endeavour; heartfelt; fervent; hearty; — used in a good sense; as, earnest prayers.
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Stern or forbidding, as in manner or appearance:
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Persistent in request or demand; insistent
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Causing danger; ready to do harm or injury.
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(Slang) Very serious or important and, often, depressing
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Serenely deliberate, composed, and dignified in character or manner.
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Inclined to find fault or criticize; fastidious; captious; censorious; exacting.
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Dire is defined as something that is urgent.
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The definition of grim is something that is so unpleasant it pushes you away.
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Melancholy; dismal:
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Showing or having characteristics advantageous to or of use in business; methodical and systematic.
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Being essential or decisive for determining the outcome or future of something; extremely important.
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Having the mind and will focused on a specific purpose:
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Capable of or producing reflection:
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Causing suffering; hard to bear; severe
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Used to describe something that endangers the continued life of the subject.
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The definition of determined is someone with their mind made up about something.
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Deeply earnest; very sincere
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(Often of a person, or a horse, etc) Hard to manage, uncooperative, troublesome.
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Said or done without humor:
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Containing lead, or suffering from lead poisoning (saturnia)
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Serious, solemn, grave, or sedate
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Sober; sedate; settled and steady
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Not funny:
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Rigorous; severe; afflictive.
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Requiring much physical effort; toilsome.
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Heedful, careful, attentive, etc.; esp., considerate of others; kind
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Not indulging in or tolerating nonsense, impracticality, etc.; matter-of-fact; practical and serious
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Difficult to endure; severe; harsh:
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Devoid of extreme qualities, such as exaggeration; sober.
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Demanding great effort or labor; difficult:
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Able to be depended on for the discharge of obligations incurred; of unimpaired credit.
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Hard to understand; abstruse
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Not easy to do, achieve, or master
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Not amusing.
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Marked by difficulty or strong resistance; laborious:
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(Rare) Grave; sober
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Bad; adverse:
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Engaged in deep and serious thought.
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(Of a story) Hard to believe, such as a tall story or a tall tale.
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Antonyms for Serious

Not important; insignificant or petty.
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Of little or no importance; insignificant; trifling
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Shakespeare
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Of little weight or importance; not worth notice; slight.
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Joyful, glad, taking pleasure in being alive. Not depressed or sad.
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(Archaic) Talkative; voluble.
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Based on the scale pattern of the minor mode
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The definition of cheerful is a person or thing that brings joy, humor or good spirits.
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Experiencing the effect of favourable fortune; having the feeling arising from the consciousness of well-being or of enjoyment; enjoying good of any kind, as peace, tranquillity, comfort; contented; joyous.
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Suspiciously odd:
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Words Related to Serious

The definition of important is having great significance or consequence.
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Designating or of heavy-duty clothing designed for wear while engaged in manual or outdoor labor
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Affording comfort or relief; soothing:
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Full of or marked by dignity and seriousness
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Causing or marked by danger or pain, for example
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Synonym Study

  • Sober implies a seriousness marked by temperance, self-control, emotional balance, etc. a sober criticism
  • Earnest suggests a seriousness of purpose marked by sincerity and enthusiasm an earnest desire to help
  • Sedate implies a dignified, quiet or composed, sometimes even prim seriousness a sedate clergyman
  • Solemn suggests an impressive or awe-inspiring seriousness a solemn ceremony
  • Grave implies the dignified weightiness of heavy responsibilities or cares a grave expression on his face
  • Serious implies absorption in deep thought or involvement in something really important as distinguished from something frivolous or merely amusing he takes a serious interest in the theater
Find another word for serious. In this page you can discover 76 synonyms, antonyms, idiomatic expressions, and related words for serious, like: grave, earnest, severe, momentous, pressing, dangerous, heavy, important, disturbing, sedate and critical.