overserious
/ˌoʊvərˈsɪriəs/
adjective
- Too serious; taking things too seriously, especially in a way that is not appropriate for the situation.
- Her overserious attitude during the comedy show made her friends uncomfortable.
- He is so overserious about board games that he gets angry if someone makes a silly move.
- Don't be overserious about the dress code; it's just a casual picnic.
Antonyms