- The definition of adverse is unfavorable or acting against a person, goal or circumstance.
Hurricanes with strong winds, tornadoes and hail storms are each an example of an adverse weather condition.
- moving or working in an opposite or contrary direction; opposed: adverse river currents
- unfavorable; harmful: the adverse effects of a drought
- opposite in position
- Bot. turned toward the stem
Origin: Middle English ; from Old French avers, advers ; from Classical Latin adversus, turned opposite to, past participle of advertere, advert
- adversely adverb
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- Acting or serving to oppose; antagonistic: adverse criticism.
- Contrary to one's interests or welfare; harmful or unfavorable: adverse circumstances.
- Moving in an opposite or opposing direction: adverse currents.
- Archaic Placed opposite.
Origin: Middle English, from Old French advers, from Latin adversus, past participle of advertere, to turn toward : ad-, ad- + vertere, to turn; see wer-2 in Indo-European roots.
- ad·verseˈly adverb
- ad·verseˈness noun