Mirthful is a 8 letter English word. It's valid Scrabble word worth 16 points. It's valid Words with friends word worth 18 points.
You can make 176 anagrams from letters in mirthful (fhilmrtu).
Middle English word dating back to 1275-1325; See origin at mirth, -ful
Miss Georgie Howard nodded her—head three times, and her eyes were mirthful.
John and Mary looked at each other with a nod of mirthful approval.
But mirthful sounds arose, the banquet was at last being served.
"There, boy," he said, wiping the mirthful tears from his eyes.
"I am reasonably sure that you will," was Miriam's mirthful reply.
My experience, both serious and mirthful, combats this conclusion.
It was not a pleasant laugh, nor was it in the least mirthful.
I suppose that my smile persisted, and was not a mirthful one.
I burst into a fit of laughter, which was not so mirthful as it might seem.
Keep your laughter for the end, and see whether it will be so mirthful.