larky

/ˈlɑːrki/
adjective
  1. Playful, mischievous, or full of fun.
    • His larky sense of humor kept the office atmosphere light and friendly.
    • The larky kitten hid behind the curtain and pounced on everyone who walked by.
    • The movie had a larky tone, with silly jokes and slapstick comedy.
Antonyms
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