unsubscribe (v.) Look up unsubscribe at Dictionary.com
1570s (implied in unsubscribed), from un- (2) "reverse of" + subscribe (v.). Related: unsubscribing.
unsubsidized (adj.) Look up unsubsidized at Dictionary.com
1756, from un- (1) "not" + past participle of subsidize (v.).
unsubstantial (adj.) Look up unsubstantial at Dictionary.com
mid-15c., from un- (1) "not" + substantial (adj.).
unsubstantiated (adj.) Look up unsubstantiated at Dictionary.com
1775, from un- (1) "not" + past participle of substantiate (v.).
unsuccessful (adj.) Look up unsuccessful at Dictionary.com
1610s, from un- (1) "not" + successful (adj.). Related: Unsuccessfully. A noun unsuccess "lack of success" is recorded from 1580s.
unsuitable (adj.) Look up unsuitable at Dictionary.com
1590s, from un- (1) "not" + suitable (adj.). Related: Unsuitably; unsuitability.
unsuited (adj.) Look up unsuited at Dictionary.com
"unfit," 1590s, from un- (1) "not" + past participle of suit (v.).
unsullied (adj.) Look up unsullied at Dictionary.com
1580s, from un- (1) "not" + past participle of sully (v.).
unsung (adj.) Look up unsung at Dictionary.com
early 15c., "not uttered in a song," from un- (1) "not" + past participle of sing (v.). Similar formation in German ungesungen. Meaning "not celebrated" is recorded from 1660s.
unsupervised (adj.) Look up unsupervised at Dictionary.com
1845, from un- (1) "not" + past participle of supervise (v.).
unsupported (adj.) Look up unsupported at Dictionary.com
early 15c., from un- (1) "not" + past participle of support (v.).
unsure (adj.) Look up unsure at Dictionary.com
c.1400, "not safe against attack," also "lacking certainty," from un- (1) "not" + sure (adj.).
unsurmountable (adj.) Look up unsurmountable at Dictionary.com
"incapable of being overcome," 1701, from un- (1) "not" + surmountable.
unsurpassable (adj.) Look up unsurpassable at Dictionary.com
1610s, from un- (1) "not" + surpassable (see surpass (v.)).
unsurpassed (adj.) Look up unsurpassed at Dictionary.com
1775, from un- (1) "not" + past participle of surpass (v.).
unsuspected (adj.) Look up unsuspected at Dictionary.com
1520s, from un- (1) "not" + past participle of suspect (v.).
unsuspecting (adj.) Look up unsuspecting at Dictionary.com
1590s, from un- (1) "not" + present participle of suspect (v.).
unsustainable (adj.) Look up unsustainable at Dictionary.com
1670s, from un- (1) "not" + sustainable (adj.).
unswayed (adj.) Look up unswayed at Dictionary.com
1590s, from un- (1) "not" + past participle of sway (v.).
unsweetened (n.) Look up unsweetened at Dictionary.com
1775, "not having been sweetened," from un- (1) "not" + past participle of sweeten (v.); or else, if the sense is "with sweetness removed," from unsweeten (v.), which is attested from 1610s.
unswerving (adj.) Look up unswerving at Dictionary.com
1690s, from un- (1) "not" + present participle of swerve (v.).
unsympathetic (adj.) Look up unsympathetic at Dictionary.com
1785, from un- (1) "not" + sympathetic (adj.).
unsystematic (adj.) Look up unsystematic at Dictionary.com
1770, from un- (1) "not" + systematic (adj.).
untainted (adj.) Look up untainted at Dictionary.com
1580s, in the moral sense; c.1600 in the physical sense; from un- (1) "not" + past participle of taint (v.). Earlier was untained (mid-15c.), from a Middle English variant of taint (v.).
untamed (adj.) Look up untamed at Dictionary.com
mid-14c., from un- (1) "not" + past participle of tame (v.). Similar formation in Old English untemed, Old Norse utamdr, Old High German ungizamot.
untangible (adj.) Look up untangible at Dictionary.com
1775, from un- (1) "not" + tangible (adj.).
untangle (v.) Look up untangle at Dictionary.com
1540s, from un- (2) "reverse, opposite of" + tangle (v.). Related: Untangled; untangling.
untapped (adj.) Look up untapped at Dictionary.com
1775, from un- (1) "not" + past participle of tap (v.). Figurative use from c.1890.
untaught (adj.) Look up untaught at Dictionary.com
mid-14c., "not instructed or educated," from un- (1) "not" + taught. Hence "spontaneous, natural" (mid-15c.).
untempered (adj.) Look up untempered at Dictionary.com
mid-15c., "not properly mixed, undiluted," from un- (1) "not" + past participle of temper (v.). Similar formation in Middle Dutch ongetempert, Middle High German ungetempert. Earlier as "unrestrained" (late 14c.), also, of a musical instrument, "not properly tuned;" meaning "unhardened" is from 1820.
untenable (adj.) Look up untenable at Dictionary.com
1640s, "indefensible, incapable of being held against attack," from un- (1) "not" + tenable (adj.). Figurative sense is recorded from 1690s.
untenanted (adj.) Look up untenanted at Dictionary.com
1670s, from un- (1) "not" + tenanted (see tenant (n.)).
untether (v.) Look up untether at Dictionary.com
1775, from un- (2) "reverse, opposite of" + tether (v.). Related: Untethered; untethering.
untethered (adj.) Look up untethered at Dictionary.com
1775, past participle adjective from untether (v.).
unthaw (v.) Look up unthaw at Dictionary.com
1590s, "to thaw," from un- (2) "opposite of" + thaw (v.). Related: Unthawed; unthawing. Unthawed also sometimes is used with a sense "frozen" (1610s.).
unthinkable (adj.) Look up unthinkable at Dictionary.com
early 15c., "too large to be conceived, unimaginable," from un- (1) "not" + think (v.) + -able. Meaning "incapable of being framed by thought" is recorded from mid-15c.
unthinking (adj.) Look up unthinking at Dictionary.com
1670s, "unreflecting;" 1680s, "heedless," from un- (1) "not" + present participle of think (v.).
unthrifty (adj.) Look up unthrifty at Dictionary.com
late 14c., "unprofitable, useless," from un- (1) "not" + thrifty (adj.), or else from Middle English noun unthrift "profligacy," late 14c., earlier "evil practice, wicked act" (c.1300).
untidy (adj.) Look up untidy at Dictionary.com
early 13c., "untimely, unseasonable, unsuitable," from un- (1) "not" + tidy (adj.). Similar formation in West Frisian ontidich, Middle Dutch ontidich, Dutch ontijdig, Old High German unzitich, German unzeitig, Norwegian utidig "untimely, unseasonable, unfavorable." Meaning "poorly cared for, not neat" is recorded from mid-14c.
untidy (v.) Look up untidy at Dictionary.com
"make untidy," 1891, from untidy (adj.). Related: Untidied; untidying.
untie (v.) Look up untie at Dictionary.com
Old English untigan "loosen, unchain," from un- (2) "opposite of" + tie (v.). Related: Untied; untying.
until (prep.) Look up until at Dictionary.com
c.1200, from till (prep.). The first element is un- "as far as, up to" (also in unto), from Old Norse *und "as far as, up to," from Proto-Germanic *und- (cognates: Old English "up to, as far as," Old Frisian, Old Saxon, Gothic und), from PIE *nti-, from root *ant- "front, forehead" (see ante). The two syllables have the same meaning. Originally also used of persons and places. As a conjunction from c.1300. Similar formation in Swedish intill, Danish indtil. The Modern German equivalent, bis (Old High German biaz), is a similar compound, of Old High German bi "by, at, to" and zu "to."
untilled (adj.) Look up untilled at Dictionary.com
late 13c., from un- (1) "not" + past participle of till (v.).
untimely (adj.) Look up untimely at Dictionary.com
1530s, "coming before the proper or usual time," from un- (1) "not" + timely (adj.). Similar formation in Middle Danish utimelig, of weather, etc. Old English had untidlic "unseasonable." Related: Untimeliness.
untitled (adj.) Look up untitled at Dictionary.com
1610s, "unnamed," from un- (1) "not" + past participle of title (v.). Meaning "having no right" is from 1660s; that of "undistinguished by an aristocratic title" is from 1798.
unto (prep.) Look up unto at Dictionary.com
mid-13c., perhaps a modification of until, with southern to in place of northern equivalent till. Or perhaps a contraction of native *und to, formed on the model of until from Old English *un- "up to, as far as," cognate of the first element in until. "Very rare in standard writers of the 18th c.," according to OED, and since then chiefly in dignified, archaic, or Biblical styles.
untold (adj.) Look up untold at Dictionary.com
Old English unteald, "not counted or reckoned," from un- (1) "not" + past participle of tell (v.) in its original numerical sense. Similar formation in Middle Dutch ongetellet, German ungezahlt, Old Norse utaliðr. Meaning "not related or recounted" is recorded from late 14c.
untouchable (adj.) Look up untouchable at Dictionary.com
1560s, "immaterial," from un- (1) "not" + touchable (see touch (v.)). Meaning "that legally cannot be interfered with" is recorded from 1734. Meaning "too loathsome or defiling to be touched" is recorded from 1873. The noun, in reference to a hereditary low caste of India, is attested from 1909; the term and the restrictions were made illegal in India in 1947.
untouched (adj.) Look up untouched at Dictionary.com
late 14c., "not been physically contacted," from un- (1) "not" + past participle of touch (v.). Meaning "unharmed, uninjured" is from c.1400; that of "not used at all" is from 1530s; sense of "unmoved emotionally" is from 1610s.
untoward (adj.) Look up untoward at Dictionary.com
1520s, "not having inclination" (to or for something), also "difficult to manage, unruly," from un- (1) "not" + toward (adj.).