/ Thesaurus / P Synonyms of po faced Find synonyms for: Adjective1. po-faced, humorless (vs. humorous), humourless, unhumoroususage: humorless and disapprovingWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language