GRUMPY Synonyms: 117 Similar and Opposite Words - Merriam-Webster
https://www.merriam-webster.com/thesaurus/grumpy
WebSynonyms for GRUMPY: irritable, fiery, grouchy, irascible, peevish, petulant, snappish, crabby; Antonyms of GRUMPY: friendly, affable, gregarious, outgoing, cordial, genial, sociable, amiable.
DA: 13 PA: 57 MOZ Rank: 14