Synonyms of costly in English:

costly


See definition of costly

adjective

1‘his work was published in small and costly editions’

SYNONYMS

expensive, dear, high-cost, high-priced, highly priced, big-budget, overpriced, exorbitant, extortionate, immoderate, extravagant

lavish, rich, deluxe, choice, fine, exquisite

valuable, priceless, worth its weight in gold, worth a king's ransom

British upmarket, over the odds

informal steep, pricey

ANTONYMS

cheap, inexpensive

2‘in those weather conditions any mistakes could be costly’

SYNONYMS

catastrophic, ruinous, disastrous, calamitous, cataclysmic, devastating, crippling, crushing, fatal, lethal, damaging, harmful, injurious, deleterious, woeful, grievous, lamentable, dire, awful, terrible, unfortunate

literary direful

ANTONYMS

beneficial