platitudinarian

[ plat-i-tood-n-air-ee-uh n, -tyood- ]
/ ˌplæt ɪˌtud nˈɛər i ən, -ˌtyud- /

noun

a person who frequently or habitually utters platitudes.

Origin of platitudinarian

1850–55; platitudin(ous) + -arian, perhaps on the model of latitudinarian

Example sentences from the Web for platitudinarian