adjective
- showing great joy, satisfaction, or triumph; rejoicing; exultant: the cheers of the jubilant victors; the jubilant climax of his symphony.
adjective
- feeling or expressing great joy
1660s, from Latin jubilantem (nominative jubilans), present participle of jubilare “to call to someone,” in Christian writers, “to shout for joy,” related to jubilum “wild shout.” First attested in Milton. Related: Jubilantly.