- ( added to adjectives or past participles ) not
- ( added to nouns ) absent, lacking, not
- ( added to verbs and nouns to form verbs ) reverse, opposite
- to undress — “to take one's clothes off”
- to unwind — “to reverse a winding”
- to unlock — “to undo the locking of”
- release, free, remove, extract .
- Only certain words can take un- to form a new word with the opposite meaning. In particular, verbs that describe an irreversible action produce words often considered nonsense, e.g. unkill, unspend, unlose, unring. These words may nevertheless be in occasional use for humorous or other effect .
- Used to form temporary names of elements ( such as ununbium ) whose existence has been predicted, and have not yet been given a systematic name .
- Definition of un- - Merriam-Webster Online Dictionary
- IPA: /un/
- nu , Nu, NU
- United Nations
- nu , Nu, NU
- Un-. [OE. un-, on-, the unaccented form of the accented prefix and- ( cf. Answer ); akin to D. ont-, G. ent-, OHG. int-, Goth. and-. See Anti-.] An inseparable verbal prefix or particle. It is prefixed: To verbs to express the contrary, and not the simple negative, of the action of the verb to which it is prefixed; as in unbend, uncoil, undo, unfold. To nouns to form verbs expressing privation of the thing, quality, or state expressed by the noun, or separation from it; as in unchild, unsex. Sometimes particles and participial adjectives formed with this prefix coincide in form with compounds of the negative prefix un- ( see 2d Un- ); as in undone ( from undo ), meaning unfastened, ruined; and undone ( from 2d un- and done ) meaning not done, not finished. Un- is sometimes used with an intensive force merely; as in unloose.
☞ Compounds of this prefix are given in full in their proper order in the Vocabulary.
- Un-. [OE. & AS. un-; akin to OFries. un-, D. on-, OS., OHG., & G. un-, Icel. ō-, ū-, Sw. o-, Dan. u-, W. an-, L. in-, Gr. , , Skr. an-, a-. √193. Cf. A- not In- not, No, adv.] An inseparable prefix, or particle, signifying not; in-; non-. In- is prefixed mostly to words of Latin origin, or else to words formed by Latin suffixes; un- is of much wider application, and is attached at will to almost any adjective, or participle used adjectively, or adverb, from which it may be desired to form a corresponding negative adjective or adverb, and is also, but less freely, prefixed to nouns. Un- sometimes has merely an intensive force; as in unmerciless, unremorseless.
I. Un- is prefixed to adjectives, or to words used adjectively. Specifically: --
To adjectives, to denote the absence of the quality designated by the adjective; as, --
From Middle English un-, from Old English un- ( “un-” ), from Proto-Germanic *un- ( “un-” ), from Proto-Indo-European *n̥- ( “un-, not” ). Cognate with Scots un-, on- ( “un-” ), North Frisian ün- ( “un-” ), Eastern Frisian ûn- ( “un-” ), West Frisian ûn-, on-, Dutch on- ( “un-” ), Low German un- ( “un-” ), German un- ( “un-” ), Danish u- ( “un-” ), Swedish o- ( “un-” ), Norwegian u- ( “un-” ), Icelandic ó- ( “un-” ). Related also to Latin in-, Ancient Greek ἀ- ( modern Greek α- ) and Sanskrit अ- ( a- ) .
From Latin ūnus .
Proto-Germanic *un-, from Proto-Indo-European *n̥-, a prefix use of the particle *ne ( “not” ). Cognate with Old Saxon un- ( Dutch on- ), Old High German un- ( German un- ), Old Norse ó- ( Swedish o-, Norwegian u ), and Gothic - ( un- ). The Indo-European root is also the source of Greek α- ( a- ), αν- ( an- ), Latin in-, and Old Irish in- .
By Wiktionary ( 2011/08/13 12:34 UTC Version )
'un ( plural: 'uns )
By Wiktionary ( 2011/06/06 22:21 UTC Version )
From Latin ūnus ( “one” )
By Wiktionary ( 2012/04/13 06:19 UTC Version )
Definition of un- by GCIDE Dictionary