/ Dictionary / Index N nonreadable: Meaning and Definition of Find definitions for: non•read•a•ble Pronunciation: (non-rē'du-bul), [key] — adj. unreadable. pertaining to letter mail with addresses and zip codes incapable of being read by optical scanning devices. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. nonqualified nonrecognition Related Content Daily Word Quiz: candor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language