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1184 entries found
unattested (adj.)
1660s, from un- (1) "not" + past participle of attest (v.).
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unattractive (adj.)
1729, from un- (1) "not" + attractive. Related: Unattractively; unattractiveness.
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unauthorized (adj.)
1590s, from un- (1) "not" + past participle of authorize (v.).
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unavailability (n.)
1855, from un- (2) "opposite of" + availability, or else from unavailable + -ity.
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unavailable (adj.)
1540s, "ineffectual," from un- (1) "not" + available. Meaning "incapable of being used" is recorded from 1855. Unavailing has taken up the older sense of the word.
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unavailing (adj.)
"ineffectual, useless," 1660s, from un- (1) "not" + availing. Also see unavailable.
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unavoidable (adj.)
mid-15c., from un- (1) "not" + avoidable. Related: Unavoidably.
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unawares (adv.)
1530s, "without being aware," from un- (1) "not" + aware + adverbial genitive -s. Meaning "without being noticed" is recorded from 1660s. Form unaware is recorded from 1590s.
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unbalance (v.)
1856, from un- (2) "reverse, opposite of" + balance (v.).
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