C.1374, from Old French avers (French: adverse), from Latin adversus (turned against), past participle of advertere, from ad- (to) + vertere (to turn). See also versus.



Adverse (comparative adverser, superlative adversest)
  1. Unfavorable; antagonistic in purpose or effect; hostile; actively opposing one's interests or wishes; contrary to one's welfare; acting against; working in an opposing direction.
    adverse criticism
  2. Opposed; contrary; opposing one's interests or desire.
    adverse circumstances.
  3. Patrono:Uncomparable Opposite; confronting.
    the adverse page
    the adverse party
    Calpe's adverse height / […] must greet my sight

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Adverse is sometimes confused with averse, though the meanings are somewhat different. Adverse most often refers to things, denoting something that is in opposition to someone's interests — something one might refer to as an adversity or adversary — (adverse winds; an attitude adverse to our ideals). Averse usually refers to people, and implies one has a distaste, disinclination, or aversion toward something (a leader averse to war; an investor averse to risk taking). Averse is most often used with "to" in a construction like "I am averse to…". Adverse shows up less often in this type of construction, describing a person instead of a thing, and should carry a meaning of "actively opposed to" rather that "has an aversion to".

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From Latin adversus (against, opposite).



  1. adverse

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