- s full of or showing high-spirited merriment
a mirthful laugh
- s arousing or provoking laughter
a mirthful experience
- Self-deprecating and mirthful, he describes himself as lazy, living off his partner's patience and generosity.
- The tumbling litanies lend a lively, mirthful twist to the songs' plaintive themes.
- He is a comic manque whose speech is marked by a habitual mirthful undertone, and his remarks brightened the somber atmosphere.