costly
/ˈkɒst.li/ adjective B2- Of high cost; expensive. · a costly activity· a costly error
Comparative costlier · Superlative costliest
From the library
He fights for the mere pleasure of fighting and is equally ready to take up either side of a question, so that it is no wonder that he has found it a costly amusement.
Splendid paintings by the first masters were ranged against the walls, intermingled with magnificent trophies of war, while heavy curtains of costly tapestry were suspended before the different doors of the room.
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