platitudinarian means one who uses many platitudes in speaking or writing. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
platitudinarian is pronounced /ˌplatɪˌtjuːdɪˈtɛəɹi.ən/.
Why “platitudinarian” is a great word
PLATITUDINARIAN — [Noun] One who habitually uses platitudes in speech or writing. From platitude (from French platitude, "flatness, dullness," from plat, "flat") + the connecting element -in- + the suffix -arian (denoting a person associated with a particular practice or belief). Unlike a phrasemaker, who mints sharp, novel expressions, or a sophist, who weaves clever deceit, the platitudinarian wields only the blunted currency of unexamined consensus. One hears the cadence in the rubber-stamp condolence, sees its ghost in the prefabricated mission statement framed in beige, and tastes its essence in the committee-approved pablum served at every safe gathering—a hollow ritual of intellectual surrender, where language polishes meaning into a smooth, featureless plain.
noun
- One who uses many platitudes in speaking or writing.“Sir Culling was an extreme Low Churchman, an Exeter Hallite to the backbone, and the head and front of the Platitudinarian Party.”