English Lexicon

Costly

/ˈkɒst.li/
adjectiveCEFR B2 (Upper)Top #1500 frequency
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Comprehensive Definitions & Senses

2 senses
As adjective
  1. 1

    Involving a high cost; expensive.

    "The repairs to the old building were costly, exceeding the initial budget."
  2. 2

    Entailing significant loss or sacrifice.

    "The decision to expand the business proved to be costly in terms of time and resources."

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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

The word 'costly' originates from the Middle English term 'costli', which is derived from the Old Norse 'kostnaðr', meaning 'cost'. The evolution of the term reflects a shift from a focus on monetary value to a broader implication of high expense or significant sacrifice.

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