- unconnected (adj.)
[unconnected 词源字典] - 1736, from un- (1) "not" + past participle of connect (v.).[unconnected etymology, unconnected origin, 英语词源]
- unconquerable (adj.)
- 1590s, from un- (1) "not" + conquer + -able.
- unconscionable (adj.)
- 1560s, "showing no regard for conscience," from un- (1) + now rare conscionable "conscientious." Related: Unconscionably.
- unconscious (adj.)
- 1712, "unaware, not marked by conscious thought," from un- (1) "not" + conscious. Meaning "temporarily insensible, knocked out" is recorded from 1860. Related: Unconsciously; unconsciousness. In psychology, the noun the unconscious (1876) is a loan-translation of German das Unbewusste. The adjective in this sense is recorded from 1912.
- unconstitutional (adj.)
- 1734, from un- (1) "not" + constitutional (adj.). Related: Unconstitutionally.
- unconstrained (adj.)
- 1640s, from un- (1) "not" + past participle of constrain (v.). Related: Unconstrainedly.
- uncontested (adj.)
- 1670s, from un- (1) "not" + contested.
- uncontrollable (adj.)
- 1570s, "irrefutable," from un- (1) "not" + controllable. From 1590s as "not subject to authority;" meaning "that cannot be restrained" is from 1640s. Related: Uncontrollably.
- uncontrolled (adj.)
- 1510s, from un- (1) "not" + past participle of control (v.).
- uncontroverted (adj.)
- "not liable to be called into question," 1640s, from un- (1) "not" + past participle of controvert (v.).
- unconventional (adj.)
- 1832, from un- (1) "not" + conventional (adj.). "A 19 cent. epithet for a certain type of affectation." [Weekley] Related: Unconventionally.
- unconventionality (n.)
- 1849, with reference to Shelley, from unconventional + -ity.
- unconverted (adj.)
- 1640s, from un- (1) "not" + past participle of convert (v.).
- unconvinced (adj.)
- 1670s, from un- (1) "not" + past participle of convince (v.). Unconvincing is recorded from 1650s.
- uncool (adj.)
- 1953, in hipster slang, from un- (1) "not" + slang sense of cool (adj.).
- uncooperative (adj.)
- also uncoöperative, 1847, from un- + cooperative (adj.). Related: Uncooperatively.
- uncoordinated
- 1801, from un- (1) "not" + past participle of coordinate (v.).
- uncorrupted (adj.)
- c. 1400, of organic matter, "not putrefied," from un- (1) "not" + past participle of corrupt (v.). From 1560s of persons, "not influenced by bribes."
- uncorruptible (adj.)
- late 14c., from un- (1) "not" + corruptible (adj.).
- uncountable (adj.)
- late 14c., from un- (1) "not" + count (v.) + -able.
