ADVERSE definition: unfavorable or antagonistic in purpose or effect. See examples of adverse used in a sentence.

ADVERSE meaning: 1. having a negative or harmful effect on something: 2. having a negative or harmful effect on…. Learn more.

If it's adverse, it's working against you — like adverse weather conditions or the adverse effects of eating too much sugar. Coming from the Latin adversus meaning "turned against," adverse is …

Adverse decisions, conditions, or effects are unfavorable to you. The police said Mr. Hadfield's decision would have no adverse effect on the progress of the investigation.

2 days ago · Learn the difference between averse and adverse with clear rules, examples, and common mistakes to help ESL learners use both words correctly.

Dec 26, 2025 · 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 …

Definition of adverse adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.