priceless (adj.)

• absurd
• amusing
• bizarre
• cherished
• comical
• costly
• dear
• droll
• eccentric
• expensive
• funny
• golden
• high-priced
• hilarious
• humorous
• hysterical
• incalculable
• incongruous
• inestimable
• invaluable
• irreplaceable
• laughable
• ludicrous
• precious
• quaint
• quizzical
• rich
• ridiculous
• riotous
• risible
• screaming
• treasured
• unique
• valuable
• valued
• whimsical
• witty
• worthy