Impair
Impair verb - To reduce the soundness, effectiveness, or perfection of.
Poison and impair are semantically related. In some cases you can use "Poison" instead a verb "Impair".
Nearby Words: impairment, impairing
Poison
Poison verb - To lower in character, dignity, or quality.
Usage example: this party partisanship poisons the national debate we should be having about this urgent problem
Mutual synonyms
Cite this Source
Poison and Impair. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/impair/poison
Impair & Poison. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/impair/poison>.
Poison or Impair. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/impair/poison.
Google Ngram Viewer shows how "impair" and "poison" have occurred on timeline