/ Dictionary / Index I inauspicious: Meaning and Definition of Find definitions for: in•aus•pi•cious Pronunciation: (in"ô-spish'us), [key] — adj. not auspicious; boding ill; ill-omened; unfavorable. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: inauspicious (Thesaurus) Inauguration Day inauthentic Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language