costliest

ADJECTIVE

expensive

Synonyms

STRONGEST

pricey valuable

WEAK

an arm and leg cher dear excessive executive exorbitant extortionate extravagant fancy high high-priced highly priced inordinate precious premium steep stiff top

Antonyms

WEAK

aiding cheap helpful inexpensive not valuable poor reasonable

ADJECTIVE

priceless

Synonyms

STRONGEST

valuable

WEAK

gorgeous inestimable invaluable lavish luxurious opulent precious rich splendid sumptuous

Antonyms

WEAK

aiding cheap helpful inexpensive not valuable poor reasonable

ADJECTIVE

harmful, damaging

Synonyms

STRONGEST

catastrophic disastrous ruinous

WEAK

deleterious loss-making sacrificial

Antonyms

WEAK

aiding cheap helpful inexpensive not valuable poor reasonable

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.

She said she thought it also benefitted the company, as being unwell meant she could "make mistakes and it could cost clients".

From BBC • Jul. 14, 2022

Sentinel’s chief executive, Eric Bloom, was later convicted in a fraud that cost clients more than $500 million.

From Washington Post • Jan. 15, 2015

Put another way: All of those carefully worded and very sophisticated documents, whose drafting cost clients tens of thousands of dollars in billable hours, may not accomplish what they intend.

From New York Times • Dec. 5, 2014