1520s, from un- (1) "not" + quiet (adj.).
spent an unquiet night tossing and turning
following the assassination of Martin Luter King ours was an unquiet nation
unquiet days of riots
an unquiet mind
unqualified
unquantifiable
unquenchable
unquestionable
unquestioned
unquiet
unquote
unravel
unreachable
unread
unreadable
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