adverse

Steer clear of adverse anything. If it's adverse, it's working against you — like adverse weather conditions or the adverse effects of waxing your back.

Coming from the Latin adversus meaning "turned against," adverse is an adjective describing a factor that seems to work against or actively harm something. Think of the related word, adversary, which means enemy or opponent, so that if something is adverse, it acts as if it were the enemy. Often you can find expressions such as "he is risk adverse" as a way to say that someone doesn't like taking risks.

DEFINITIONS OF: adverse

1

adj in an opposing direction

adverse currents”
Synonyms:
contrary
unfavorable, unfavourable
(of winds or weather) tending to hinder or oppose

adj contrary to your interests or welfare

adverse circumstances”
Synonyms:
inauspicious, untoward
unfavorable, unfavourable
not encouraging or approving or pleasing
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