risible

adjective3

1. •
   Provoking laughter; ludicrous; ridiculous; humorously insignificant.

   • "[…] I hope you find nothing risible in my complaisance?" replied his companion, something jealously. — 1822
2. •
   Of or pertaining to laughter.

   • the risible muscles
3. •
   Easily laughing; prone to laughter.

   • We are got indeed into a merry world, Laughing is our main businiss; as if because it has bin made part of the Definition of man, that he his Risible, his man-hood consisted in nothing else. — 1674