PLAYFUL Synonyms: 79 Similar and Opposite Words - Merriam-Webster
https://www.merriam-webster.com/thesaurus/playful
WEBSynonyms for PLAYFUL: amusing, mischievous, entertaining, lively, merry, goofy, energetic, frisky; Antonyms of PLAYFUL: earnest, responsible, serious, sober, dutiful, solemn, somber, stern.
DA: 58 PA: 95 MOZ Rank: 7