VocabDictionary

costly

/ˈkɒst.li/intermediate Level

English Meaning & Definitions

1.adjective

Costing a lot of money; expensive.

Example Sentences:
  • Buying a new luxury car can be a costly investment.
  • The restoration of the historic theater proved to be extremely costly.
2.adjective

Causing a lot of damage, loss, or negative consequences.

Example Sentences:
  • A single mistake in the final report proved to be a costly error.
  • The team's missed opportunity in the first half was a costly setback.
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English Synonyms & Near Equivalents

English Antonyms & Opposites

Comprehensive Thesaurus Breakdown

Compare formal, informal, literary synonyms and register nuances for “costly”.

Thesaurus Entry
Cultural Origin & Etymology

Middle English *costlich*, from Old English *costlīc*, from *cost* (expense, choice) + *-līc* (-ly, having the quality of). Cognate with Old High German *kōstlih*, meaning precious or excellent.

Memory Aid & Mnemonic

Think of the word 'cost' and add 'ly'—if something takes a lot of cost, it is costly.

Frequently Asked Questions About “costly

1. What is the meaning of “costly” in English?

In English, costly (adjective) is defined as: “Costing a lot of money; expensive.”.

2. How do you use “costly” in a sentence?

Buying a new luxury car can be a costly investment.

3. What are English synonyms of “costly”?

Common synonyms include:expensive,pricey,high-priced,valuable

4. What is the etymology and word origin of “costly”?

Middle English *costlich*, from Old English *costlīc*, from *cost* (expense, choice) + *-līc* (-ly, having the quality of). Cognate with Old High German *kōstlih*, meaning precious or excellent.