86 entries under dull topic. ×

1
ho hum(expression, adjective, stupid, ordinary)
1
insipid(adjective, hard, stupid, ordinary)
1
irksome(adjective, simple, clean, plain)
1
lackluster(adjective, simple, flat, clean)
1
mildewed(adjective, flat, silly, commonplace)
1
plebeian(adjective, simple, clean, plain)
1
repetitious(adjective, hard, flat, stupid)
1
run-of-the-mill(adjective, flat, silly, ordinary)
1
stupid(adjective, ordinary, tedious, lifeless)
1
tame(adjective, simple, clean, plain)
1
uninspiring(adjective, simple, clean, plain)
1
used-up(adjective, flat, silly, commonplace)
1
wishy-washy(adjective, stupid, ordinary, commonplace)
0
antiquated(adjective, hard, tired, old)
0
bent(adjective, hard, tired, old)
0
dusty(adjective, hard, tired, old)
0
effete(adjective, hard, tired, old)
0
like a dinosaur(expression, adjective, idiom, hard)
0
mawkish(adjective, hard, tired, old)
0
out(adjective, hard, tired, old)
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APASmart Define. (2015). platitudinous thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/platitudinous/thesaurus/synonyms
ChicagoSmart Define. 2015. "platitudinous thesaurus" https://smartdefine.org/platitudinous/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, platitudinous thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/platitudinous/thesaurus/synonyms>.
MLASmart Define. "platitudinous thesaurus" 13 April 2015. Web. 30 September 2026. <https://smartdefine.org/platitudinous/thesaurus/synonyms>