The Collaborative International Dictionary
Festively
Festive \Fes"tive\, a. [L. festivus, fr. festum holiday, feast. See feast, and cf. Festivous.] Pertaining to, or becoming, a feast; festal; joyous; gay; mirthful; sportive. -- Fes"tive*ly, adv.
The glad circle round them yield their souls
To festive mirth and wit that knows no gall.
--Thomson.
Wiktionary
festively
adv. In a festive manner
Usage examples of "festively".
My hired suit looked even more festively clownish, in the floodlights of day.