costlier

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.

See Examples For:

costlier

To be clear, costlier jet fuel was painful, even for Delta, which owns an oil refinery.

From The Wall Street Journal ● Jul. 9, 2026

Its future access to markets, and therefore to liquidity, will be harder and costlier in the long run.

From Barron's ● Jun. 23, 2026

Higher interest rates make it costlier to borrow money, which acts as a brake on spending, employment, and economic growth.

From Slate ● Jun. 17, 2026

Summer gas is refined in a way that reduces emissions and smog, but it is also costlier to make.

From MarketWatch ● Apr. 29, 2026

But they bowed to Sproul’s judgment that losing Lawrence would be even costlier, and voted to cover all the annual operating and maintenance costs that Lawrence had budgeted for the Rad Lab.

From "Big Science" by Michael Hiltzik