/ Dictionary / Index U unnail: Meaning and Definition of Find definitions for: un•nail Pronunciation: (un-nāl'), [key] — v.t. to take out the nails from. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. unmyelinated unnamed Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language