WordReference Random House Unabridged Dictionary of American English © 2026
mirth•ful
(mûrth′fəl),USA pronunciation adj.
mirth′ful•ly, adv.
mirth′ful•ness, n.
- joyous;
gay;
jolly:a mirthful laugh. - providing mirth;
amusing:a mirthful experience.
- 1275–1325; Middle English; see mirth, -ful
mirth′ful•ness, n.
'mirthfulness' also found in these entries (note: many are not synonyms or translations):