ludicrous

adjective2

1. •
   Idiotic or unthinkable, often to the point of being funny; amusing by being plainly incongruous or absurd.

   • He made a ludicrous attempt to run for office.
2. •
   (no longer used) Playful, fun, entertaining.

   • […]to auert their conceits from the consideration of serious, and grauer matters, by feeding their humors, and delighting their fansies with such fabulous and ludicrous toyes. — 1598