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Thesaurus: impair

To make worse; to diminish in quantity, value, excellence, or strength; to deteriorate; as, to impair health, character, the mind, value.

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  1. v. t. To make worse; to diminish in quantity, value, excellence, or strength; to deteriorate; as, to impair health, character, the mind, value.
  2. v. t. To grow worse; to deteriorate.
  3. a. Not fit or appropriate.
  4. n. Diminution; injury.
  5. v. make worse or less effective
  6. v. make imperfect
  7. To make worse; to diminish in quantity, value, excellence, or strength; to deteriorate; as, to impair health, character, the mind, value. Time sensibly all things impairs. Roscommon. In years he seemed, but not impaired by years. Pope. Syn. -- To diminish; decrease; injure; weaken; enfeeble; debilitate; reduce; debase; deteriorate. To grow worse; to deteriorate. Milton. Not fit or appropriate. [Obs.] Diminution; injury. [Obs.]
  8. To make worse; to diminish in quantity, value, excellence, orstrength; to deteriorate; as, to impair health, character, the mind,value.Time sensibly all things impairs. Roscommon.In years he seemed, but not impaired by years. Pope.
  9. v:100 v. make worse or less effective