[plat-i-tood-n-air-ee-uh n, -tyood-]
a person who frequently or habitually utters platitudes.
Origin of platitudinarian
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for platitudinarian
Historical Examples of platitudinarian
He was damped to the skin by Mary Ann's platitudinarian style of conversation.The Grey Wig: Stories and Novelettes