adverse

Meanings

1. 1
   adj

   Bad or harmful; having a negative effect.

   The drug can have adverse effects on some patients.

2. 2
   adj

   Difficult or unfavourable; working against you.

   The expedition continued despite the adverse weather conditions.

First attested around 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.

Topics