Synonyms for ostentatious

adj flashy, showy

Antonyms for ostentatious

Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

camp

adjective. consciously affecting the unfashionable, weird, or bizarre
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.