Thesaurus.com
Dictionary.com
Definitions

costly

[kawst-lee, kost-] / ˈkɔst li, ˈkɒst- /




Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

To achieve that, the companies need to have costly high-end chips, build expansive data centers, manage power requirements and recruit top-tier researchers who demand multimillion-dollar offers.

From Los Angeles Times • Jun. 10, 2026

To make sure you arrive in time for each wedding, I’d save the price of one round-trip ticket just in case you need to make a costly flight change.

From MarketWatch • Jun. 9, 2026

The electricity generated this way is costly, but companies racing to develop AI are willing to pay higher prices.

From Barron's • Jun. 5, 2026

These tasks historically absorbed large numbers of early-career workers because they were time-consuming and costly to perform.

From The Wall Street Journal • Jun. 5, 2026

“Diabetes mellitus—commonly referred to as diabetes—is a costly, silent killer. This complex but common disease occurs when a cat’s body either doesn’t produce or doesn’t properly use insulin.”

From "Sir Fig Newton and the Science of Persistence" by Sonja Thomas




Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "costly" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com