'Risibility' definitions:

Definition of 'risibility'

From: WordNet
noun
A disposition to laugh

Definition of 'Risibility'

From: GCIDE
  • Risibility \Ris`i*bil"i*ty\, n. [CF. F. risibilit['e].] The quality of being risible; as, risibility is peculiar to the human species. [1913 Webster]
  • A strong and obvious disposition to risibility. --Sir W. Scott. [1913 Webster]