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costly

cost·ly

costly

 
 
pronunciation:
kawst li
part of speech: adjective
inflections: costlier, costliest
definition 1: of high cost, value, or expense.
costly perfume
synonyms:
dear, expensive, precious, valuable
antonyms:
cheap
similar words:
exorbitant, lavish, priceless, rich, steep
definition 2: resulting in great damage or loss.
a costly error in judgment
synonyms:
calamitous, disastrous
antonyms:
beneficial
similar words:
expensive
derivation: costliness (n.)