Word.ws English Dictionary

Past tense of impair

regular verb

The past tense of impair is impaired. The past participle is also impaired.

Forms of impair

Base form (V1)impair /ɪmˈpɛə/
Past tense (V2)impaired /ɪmˈpɛrd/
Past participle (V3)impaired /ɪmˈpɛrd/
Present participleimpairing
Third person singularimpairs

Impaired in a sentence

  • Bob doesn't show up on time for early meetings; he is morning impaired.From the entry morning impaired
  • His taste was impaired by an illness.From the entry taste
  • His impaired driving skill due to alcohol caused the accident.From the entry impaired
  • They need to watch out for underreplacement of magnesium because an adverse effect of the medication is impaired magnesium metabolism.From the entry underreplacement
  • The cop gave me an impaired.From the entry impaired

Meaning of impair

  1. verb To weaken; to affect negatively; to have a diminishing effect on.
  2. verb To grow worse; to deteriorate.
  3. adjective Not fit or appropriate; unsuitable.

Full definition of impair

Questions about the past tense of impair

What is the past tense of impair?
The past tense of impair is impaired.
What is the past participle of impair?
The past participle of impair is impaired.
Is impair a regular or irregular verb?
Impair is a regular verb: its past tense adds -ed.

Source and license

Adapted from Wiktionary: impair (page history and authors) and the entries of its forms. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out forms marked obsolete, archaic, rare or dialectal and added the examples. Wiktionary data of 2026-09-02.

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Cite this page: “Past tense of impair.” Word.ws, https://word.ws/past-tense/impair. Based on Wiktionary, CC BY-SA 4.0.