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.

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“Compliment” and “complement” had a shared meaning a long time ago, but today they are no longer interchangeable.

Origin of platitudinarian

1850–55; platitudin(ous) + -arian, perhaps on the model of latitudinarian
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

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