waggish

/ˈwæɡɪʃ/
adjective
  1. Playfully humorous or mischievous in a good-natured way.
    • The waggish boy hid his friend's notebook as a joke.
    • His waggish comments always lightened the mood in the office.
    • She gave a waggish grin before telling the punchline.
Antonyms
What does "waggish" mean? | whatsthatwordmean | whatsthatwordmean