- unprofessional (adj.)
[unprofessional 词源字典] - 1806, from un- (1) "not" + professional (adj.).[unprofessional etymology, unprofessional origin, 英语词源]
- unprofitable (adj.)
- early 14c., from un- (1) "not" + profitable (adj.). Related: Unprofitably.
- unpromising (adj.)
- 1660s, from un- (1) "not" + promising (adj.).
- unprompted (adj.)
- from un- (1) "not" + past participle of prompt (v.).
- unpronounceable (adj.)
- 1831, from un- (1) "not" + pronounceable (adj.).
- unpropitious (adj.)
- c. 1600 (implied in unpropitiously), from un- (1) "not" + propitious (adj.).
- unprotected (adj.)
- 1590s, from un- (1) "not" + past participle of protect (v.).
- unprovable (adj.)
- early 15c., from un- (1) "not" + provable (adj.).
- unproved (adj.)
- "not demonstrated to be true," 1530s, from un- (1) "not" + past participle of prove (v.).
- unprovoked (adj.)
- 1580s, from un- (1) "not" + past participle of provoke (v.).
- unpublished (adj.)
- c. 1600, from un- (1) "not" + past participle of publish. In reference to an author, attested from 1934.
- unpunctual (adj.)
- 1740, from un- (1) "not" + punctual (adj.).
- unpunished (adj.)
- mid-14c., from un- (1) "not" + past participle of punish (v.).
- unqualified (adj.)
- 1550s, "not having necessary qualifications, from un- (1) "not" + past participle of qualify (v.). Meaning "not modified or limited" is recorded from 1796. As a verb, unqualify "disqualify" is from 1650s.
- unquantifiable (adj.)
- 1888, from un- + quantifiable (adj.). Related: Unquantifiably.
- unquenchable (adj.)
- late 14c., of fire; 1560s, of thirst, from un- (1) "not" + quench (v.) + -able. Related: Unquenchably.
- unquestionable (adj.)
- c. 1600, from un- (1) "not" + questionable (adj.). Related: Unquestionably.
- unquestioned (adj.)
- c. 1600, "not interrogated;" 1620s, "not to be opposed or disputed," from un- (1) "not" + past participle of question (v.).
- unquiet (adj.)
- 1520s, from un- (1) "not" + quiet (adj.).
- unquote (v.)
- 1915, in telegraphs, where punctuation had to be spelled out and quote and unquote were used in place of the quotation marks; from un- (2) "reverse, opposite of" + quote (v.). Quote unquote together to indicate quotation of the word or phrase to follow (often with ironic intent) is from 1942.
