/ Dictionary / Index U undesirable: Meaning and Definition of Find definitions for: un•de•sir•a•ble Pronunciation: (un"di-zīr'u-bul), [key] — adj. not desirable or attractive; objectionable: undesirable qualities. —n. a person or thing considered undesirable: a collection of malcontents and undesirables. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: undesirable (Thesaurus) undesigning undesirable discharge Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language