Definition of platitudinous:
unimportant, musty, hackneyed, overworked, commonplace, timeworn, unoriginal, shopworn, overused, stereotypic, trite, platitudinal, well-worn, threadbare, common, stereotyped, bromidic, worn-out, stereotypical, corny, trivial, dull, tired, usual, stale, warmed-over, banal, trite, excite.
In the days when she lived in St. Louis she had never found time to go so far to see Alice, and she had shared Bessie's horror of the remote and cheerless existence in this suburb, had wondered how an intelligent and well- bred woman like Alice Johnston could endure its dull level of platitudinous existence.- "Together", Robert Herrick (1868-1938).
- "Chopin: The Man and His Music", James Huneker.
We knew he had thoroughly his own " unconventional" form, which, by the unspeakable law of youth, we managed to feel the distinction of as not platitudinous even while we a bit sneakingly felt it as quotable, on possible occasions, against our presence of mind; the great thing was at all events that we couldn't live with him without the sense that if his books resembled his talk and his character- as we moreover felt they couldn't help almost violently doing- they might want for this, that or the other which kept the conventional true to its type, but could as little fail to flush with the strong colour, colour so remarkably given and not taken, projected and not reflected, colour of thought and faith and moral and expressional atmosphere, as they could leave us without that felt side- wind of their strong composition which made after all so much of the air we breathed and was in the last resort the gage of something perpetually fine going on.- "Notes of a Son and Brother", Henry James.