IMPAIRED
afflicted, impaired
(adjective) mentally or physically unfit
impaired
(adjective) diminished in strength, quality, or utility; “impaired eyesight”
Source: WordNet® 3.1
Adjective
impaired
Rendered less effective.
inebriated, drunk.
Usage notes
• Nouns to which "impaired" is often applied: vision, hearing, mobility, healing, fertility, health, judgment, cognition, consciousness, memory, concentration, function, performance, ability, capacity, person, child, adult.
• Adverbs often applied to "impaired": visually, physically, mentally, emotionally, cognitively.
Synonyms
• (rendered less effective)
• (drunk): See drunk
Verb
impaired
simple past tense and past participle of impair
Noun
impaired (plural impaireds)
A criminal charge for driving a vehicle while impaired.
The cop gave me an impaired.
Source: Wiktionary
IMPAIR
Im*pair", v. t. [imp & p. p. Impaired; p. pr. & vb. n. Impairing.]
[Written also empair.] Etym: [OE. empeiren, enpeiren, OF. empeirier,
empirier, F. empirer, LL. impejorare; L. pref. im- in + pejorare to
make worse, fr. pejor worse. Cf. Appair.]
Definition: 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.
Im*pair", v. t.
Definition: To grow worse; to deteriorate. Milton.
Im"pair, a. Etym: [F. impair uneven, L. impar; im- not + par equal.]
Definition: Not fit or appropriate. [Obs.]
Im*pair", n.
Definition: Diminution; injury. [Obs.]
Source: Webster’s Unabridged Dictionary 1913 Edition