/ Thesaurus / G Synonyms of grimly Find synonyms for: Adverb1. grimlyusage: in a grim implacable manner; "he was grimly satisfied"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: dispel Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language