costly
adjective
costing much; expensive; high in price.
costliest
-
superlativeof costly.superlative
The form of an adjective or adverb indicating the greatest degree of a quality.
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.
It was among the costliest civil disturbances in American history.
From The Wall Street Journal ● Aug. 7, 2026
Local enthusiasm for the tournament had fallen away after co-hosts the United States were knocked out by Belgium on July 6, but tickets for the final still became the costliest in US sporting history.
From Barron's ● Jul. 19, 2026
America’s costliest autism therapy provider will shut down in May, after Indiana banned the firm from billing Medicaid.
From The Wall Street Journal ● Apr. 3, 2026
Later in the year, Jaguar Land Rover was attacked, in what became the costliest cyber event in UK history.
From BBC ● Apr. 1, 2026
I figure it’s probably the costliest portable item in the entire Clearview Inn, so I hesitate to leave it in my room for the nine or so hours while I’m away at work.
From "Nickel and Dimed: On (Not) Getting By in America" by Barbara Ehrenreich
