/ Thesaurus / H Synonyms of humorless Find synonyms for: Adjective1. humorless (vs. humorous), humourless, unhumorous, sobersided, po-faced, unfunnyusage: lacking humor; "it was a humorless wink; a wink of warning"- Truman CapoteWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language