Словарь синонимов английского языка - priceless

(adj) 1. costly, dear, expensive, high-priced, valuable, invaluable, precious, inestimable, incalculable; irreplaceable, unique: The vaults in the Vatican contain a king's ransom in priceless jewels. 2. hilarious, riotous, (screamingly) funny, side-splitting, hysterical, droll, comical, amusing: The expression on his face when he realized it was a joke was priceless.