/ Dictionary / Index G gravitas: Meaning and Definition of Find definitions for: grav•i•tas Pronunciation: (grav'i-täs", -tas"), [key] seriousness or sobriety, as of conduct or speech. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: gravitas (Thesaurus) gravisphere gravitate Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language