ludicrous (adj.)

• absurd
• amusing
• antic
• bizarre
• cockamamie
• comic
• comical
• crazy
• droll
• eccentric
• extravagant
• fantastic
• farcical
• foolish
• funny
• grotesque
• high-flown
• hilarious
• humorous
• incongruous
• incredible
• laughable
• monstrous
• nonsensical
• outrageous
• outre
• preposterous
• priceless
• quaint
• quizzical
• rich
• ridiculous
• risible
• screaming
• silly
• weird
• whimsical
• wild
• witty