/ Dictionary / Index N noisome: Meaning and Definition of Find definitions for: noi•some Pronunciation: (noi'sum), [key] — adj. offensive or disgusting, as an odor. harmful or injurious to health; noxious. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: noisome (Thesaurus) noisette rose noisy Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language