IPA: /ˈpleɪfəl/
KK: /ˈpleɪfəl/
Full of fun and energy; often behaving in a light-hearted or lively way.
The playful puppy chased its tail around the yard.
Comparative: more playful
Superlative: most playful
Playful → It is formed from "play" (from Old English *plegian*, meaning to engage in activity for enjoyment) and "-ful" (meaning full of). The word "playful" means full of play or characterized by fun and lightheartedness.
Think of engaging in enjoyable activities ('play') and being 'full of' ('-ful') that joy — that's what playful means.