/ Dictionary / Index I inadvertent: Meaning and Definition of Find definitions for: in•ad•vert•ent Pronunciation: (in"ud-vûr'tnt), [key] — adj. unintentional: an inadvertent insult. not attentive; heedless. of, pertaining to, or characterized by lack of attention. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: inadvertent (Thesaurus) inadvertency inadvisable Related Content Daily Word Quiz: sequester Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language