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impair

Line breaks: im¦pair
Pronunciation: /ɪmˈpɛː
 
/

Definition of impair in English:

verb

[with object]
Weaken or damage (something, especially a faculty or function): a noisy job could permanently impair their hearing
More example sentences
  • Driving in an intoxicated state makes a person prone to accidents as alcohol impairs judgement and slows reflexes.
  • Chronic inflammation can result in irreversible scarring of lung tissue, which impairs lung function.
  • There has long been speculation that excessive accumulation of starch may impair chloroplast function.
Synonyms
damage, harm, diminish, reduce, weaken, lessen, decrease, blunt, impede, hinder, mar, spoil, disable;
undermine, compromise, threaten
informal foul up, put the kibosh on
rare vitiate

Origin

Middle English enpeire, from Old French empeirier, based on late Latin pejorare (from Latin pejor 'worse'). The current spelling is due to association with words derived from Latin beginning with im-.

Definition of impair in:

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