/ Dictionary / Index P platitudinous: Meaning and Definition of Find definitions for: plat•i•tu•di•nous Pronunciation: (plat"i-td'n-us, -tyd'-), [key] — adj. characterized by or given to platitudes. of the nature of or resembling a platitude. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: platitudinous (Thesaurus) platitudinize Plato 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