- unseasoned (adj.)
[unseasoned 词源字典] - 1580s, "not made palatable by seasoning," from un- (1) "not" + past participle of season (v.). Meaning "not habituated by experience" is recorded from c. 1600.[unseasoned etymology, unseasoned origin, 英语词源]
- unseat (v.)
- 1590s, "to throw down from a seat" (especially on horseback), from un- (2) "reverse, opposite of" + seat (v.). Meaning "to deprive of rank or office" is attested from 1610s; especially of elected office in a representative body from 1834. Related: Unseated; unseating.
- unsecure (adj.)
- 1630s, from un- (1) "not" + secure (adj.). A useful differentiation from insecure since the latter word acquired a psychological sense.
- unsecured (adj.)
- 1780, from un- (1) "not" + past participle of secure (v.).
- unseeded (adj.)
- 1775, "not sown," from un- (1) "not" + past participle of seed (v.). From 1932 in the sports sense.
- unseemly (adj.)
- early 14c., "unfitting, indecent," from un- (1) "not" + seemly (adj.). Similar formation in Old Norse usoemiligr. Related: Unseemliness.
- unseen (adj.)
- early 13c., from un- (1) "not" + seen. Similar formation in Old English ungesewen, Middle Dutch ongesien, Dutch ongezien, Old High German ungesëhan, German ungesehen, Old Norse usenn.
- unselfish (adj.)
- 1690s, from un- (1) "not" + selfish (adj.). Similar formation in Danish uselvisk, Swedish osjälfvisk. Related: Unselfishly; unselfishness.
- unsentimental (adj.)
- 1752, from un- (1) "not" + sentimental (adj.). Related: Unsentimentally.
- unseparable (adj.)
- late 14c. from un- (1) "not" + separable (adj.). The usual word now is inseparable.
- unsettle (v.)
- 1590s, "undo from a fixed position," from un- (2) "reverse, opposite of" + settle (v.). Of the mind, feelings, etc., attested from 1640s. Related: Unsettled; unsettling.
- unsettled (adj.)
- 1590s, "not peaceful, not firmly established," from unsettle (v.) or else from un- (1) "not" + past participle of settle (v.). Meaning "not occupied by settlers" is attested from 1724.
- unsex (v.)
- "deprive of the qualities considered typical of one's gender," c. 1600, from un- (2) "reverse, opposite of" + sex (n.). Related: Unsexed; unsexing.
- unshakable (adj.)
- 1610s; see un- (1) "not" + shake (v.) + -able. Of beliefs, etc., from 1670s.
- unshaken (adj.)
- mid-15c., "not agitated," from un- (1) "not" + shaken. Meaning "not moved from a firm position" is recorded from 1540s.
- unsheathe (v.)
- late 14c., from un- (2) "reverse, opposite of" + sheathe (v.). Related: Unsheathed; unsheathing.
- unshod (adj.)
- "without shoes," Old English unscod; see un- (1) "not" + shod (adj.). Old English also had a verb unscogan "to unshoe."
- unshorn (adj.)
- Old English unscoren; see un- (1) "not" + shorn (adj.).
- unsightly (adj.)
- 1540s, "displeasing to the eye," from un- (1) "not" + sight (n.) + -ly (1). Similar formation in Middle Dutch onsichtlijc "invisible; ugly," Middle High German unsihtlih "invisible." Related: Unsightliness.
Middle English sightlie is attested from mid-15c. but only in the sense "visible;" unsightly is attested in Middle English only as an adverb meaning "invisibly" (late 15c.). Sightly as "pleasing to the eye" is from 1560s. Middle English also had unsighty "difficult or displeasing to look at" (early 15c., from sighty "attractive," late 14c.), also unsightily in the same sense (c. 1400). - unsinkable (adj.)
- 1650s, from un- (1) "not" + sinkable (see sink (v.)).
