Sinister synonyms

sĭn'ĭ-stər
Category:
Part of speech:
(Computing, programming, slang) undesirable; harmful; bad practice
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(Of food) Spoiled, rotten, overripe.
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Damaging or harmful:
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Served without milk or cream:
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The definition of adverse is unfavorable or acting against a person, goal or circumstance.
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Likely to be a hindrance; disadvantageous:
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Making or implying threats:
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Containing errors or alterations, especially ones that prevent proper understanding or use:
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Containing sufficient poison to be dangerous
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The definition of deleterious is something that is harmful or damaging.
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The definition of fortunate is someone or something that is lucky or favorable, or someone who is materially well-off.
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Producing, or resulting in, good chance, or unexpectedly; favorable; auspicious; fortunate.
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Evil or immoral:
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Apocalyptic is defined as something that refers to the Book of Revelation.
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Harmful or malignant in intent or effect:
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Without moral or spiritual light; sinister, malign.
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Deserving to be despised; contemptible
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Of or like a devil; wicked; cruel; diabolic
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Of, concerning, or characteristic of the devil; satanic.
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The definition of dire is something so bad or scary that it causes distress or terror.
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Extremely bad; terrible:
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Disposed to lie, cheat, defraud, or deceive.
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Tending or threatening to impede progress:
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Causing fear; of capable of causing fear; scary.
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Grim is defined as stern or unmoving.
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Not auspicious; ill-omened; unfortunate; unlucky; unfavorable.
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Located on the left side of a person facing downstream:
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Having, showing, or caused by malice; spiteful; intentionally mischievous or harmful
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Showing ill will; malicious
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Of or serving as an omen; esp., having the character of an evil omen; threatening; sinister
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Puffed up with vanity.
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Dishonest and sneaky; underhanded.
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Designed to be worn or placed inward; as, the wrong side of a garment or of a piece of cloth.
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Able to be depended on for the discharge of obligations incurred; of unimpaired credit.
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Knowing no evil
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1822, T. Creevey, Reminiscences, 28 Jul:
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Mild, gentle, forgiving
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Possessing or manifesting love for mankind.
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(Obsolete) Auspicious; favorable.
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Strongly suggestive of great harm, menace, or evil
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Of a menacing or threatening nature; minatory.
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Conveying or constituting a threat
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Characterized by foreboding
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The definition of malignant is something evil or intending harm, a tumor that is spreading, or a disease that is invasive.
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Causing or capable of causing harm; injurious.
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Portending harm; ominous.
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The definition of obnoxious is someone or something that is very annoying or offensive.
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Pitiful; wretched; miserable
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The definition of pernicious is deadly or very destructive.
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Inclined to annoy or vex with playful tricks; naughty
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Contrary to what is right or good; wicked or depraved:
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Causing harm to one's reputation; slanderous, libelous, invidious.
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Synonym Study

  • Malign is applied to that which is regarded as having an inherent tendency toward evil or destruction a malign doctrine
  • Baleful refers to that which is menacing to the degree of being deadly, destructive, pernicious, etc. a baleful influence
  • Sinister applies to that which can be interpreted as presaging imminent danger or evil a sinister smile
Find another word for sinister. In this page you can discover 57 synonyms, antonyms, idiomatic expressions, and related words for sinister, like: evil, bad, hurtful, black, adverse, unfavorable, unpropitious, threatening, corrupt, poisonous and deleterious.