adverse effect

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. {{lb|en|sciences}} A [[side effect]] with [[negative]] ([[deleterious]]) consequences rather than [[positive]] ([[beneficial]]) ones; especially, such an effect in [[pharmacology]].

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.