noun, plural ris·i·bil·i·ties.
Examples from the Web for risibility
Man is the only risible animal: risibility may be said, therefore, to be his distinguishing mark.
"What is the matter," inquired Gayfield, unconscious of being the cause of their risibility.Real Life In London, Volumes I. and II.|Pierce Egan
Indeed, the Japanese have recourse to risibility whenever the frailties of human nature are put to severest test.Bushido, the Soul of Japan|Inazo Nitob
Mr. Maguire did not respond to the young squire's risibility; the cast of his countenance was decidedly serious.Humorous Ghost Stories|Dorothy Scarborough
Old Matthew's risibility was evidently much tickled by the sense of their thwarted purpose.The Shadow of a Crime|Hall Caine