jokingly

/ˈdʒoʊkɪŋli/
adverb
  1. In a way that is meant to be funny or not serious; as a joke.
    • He jokingly suggested they should all move to a tropical island.
    • She jokingly called him a monster for eating the last slice of pizza.
    • The teacher jokingly warned the class that the test would be impossible.
Antonyms