Un-
Un-
[Old English un-, on-, the unaccented form of the accented prefix and- (compare Answer); akin to Dutch ont-, German ent-, Old High German int-, Gothic and-. See Anti-.]
An inseparable verbal prefix or particle. It is prefixed: (a) 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. (b) 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- , adverb
[Old English & Anglo-Saxon un-; akin to OFries. un-, Dutch on-, Old Saxon, Old High German, & German un-, Icelandic ō-, ū-, Swedish o-, Danish u-, Welsh an-, Latin in-, Greek {not transcribed}, {not transcribed}, Sanskrit an-, a-. r193. Compare 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.
(a)
To adjectives, to denote the absence of the quality designated by the adjective