/ Dictionary / Index O ostentatious: Meaning and Definition of Find definitions for: os•ten•ta•tious Pronunciation: (os"ten-tā'shus, -tun-), [key] — adj. characterized by or given to pretentious or conspicuous show in an attempt to impress others: an ostentatious dresser. (of actions, manner, qualities exhibited, etc.) intended to attract notice: Lady Bountiful's ostentatious charity. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ostentatious (Thesaurus) ostentation osteo- Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language