- unaffected (adj.)
[unaffected 词源字典]
- 1580s, "not influenced, untouched in mind or feeling," from un- (1) "not" + past participle of affect (v.). Meaning "not adopted or assumed, genuine" is recorded from 1590s; that of "not acted upon or altered (by something)" is first attested 1830. Related: Unaffectedly; unaffectedness.[unaffected etymology, unaffected origin, 英语词源]