5
clichéd(adjective, dull, set, hard, flat)
5
moth-eaten(adjective, dull, set, hard, flat)
5
old hat(expression, adjective, dull, set, flat)
5
set(adjective, dull, flat, silly, commonplace)
4
dull(adjective, set, hard, simple, flat)
4
flat(adjective, dull, set, hard, simple)
4
jejune(adjective, dull, flat, silly, ordinary)
4
musty(adjective, dull, set, hard, flat)
4
ordinary(adjective, dull, set, simple, flat)
4
overworked(adjective, excite, usual, trite)
4
shopworn(adjective, dull, set, hard, flat)
4
stereotypic(adjective, dull, flat, excite, usual)
4
stereotypical(adjective, dull, flat, excite, usual)
4
vapid(adjective, dull, set, simple, flat)
4
worn(adjective, dull, flat, silly, commonplace)
3
fusty(adjective, dull, hard, tired, old)
3
humdrum(adjective, dull, simple, clean, plain)
3
prose(adjective, simple, clean, plain, ordinary)
2
chain(adjective, dull, flat, silly, commonplace)
2
cornball(adjective, dull, set, flat, silly)
11 years ago|3.8k views|share |citing 
APASmart Define. (2015). platitudinous thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/platitudinous/thesaurus/synonyms
ChicagoSmart Define. 2015. "platitudinous thesaurus" https://smartdefine.org/platitudinous/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, platitudinous thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/platitudinous/thesaurus/synonyms>.
MLASmart Define. "platitudinous thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/platitudinous/thesaurus/synonyms>