Synonyms of costly in English:



  • 1 costly machinery
    expensive, dear, high-priced, highly priced, overpriced
    informal steep, pricey, spendy, costing an arm and a leg, costing the earth
    [Antonyms] cheap inexpensive
  • 2 a costly mistake
    catastrophic, disastrous, calamitous, ruinous; damaging, harmful, injurious, deleterious, woeful, awful, terrible, dreadful
    formal grievous
    [Antonyms] beneficial
  • Definition of costly in:

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