Definitions

countless

[kount-lis] / ˈkaʊnt lɪs /

ADJECTIVE

innumerable

Synonyms

STRONGEST

endless myriad uncounted untold

WEAK

bags of gobs heap immeasurable incalculable infinite innumerous jillion legion limitless loads lots of many measureless mess mint mucho multitudinous numberless oodles passel of peck pile raft scads slew stack tidy sum umpteen uncountable wad whole slew zillion

Antonyms

STRONGEST

few limited

WEAK

calculable countable counted measurable numbered numerable

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 turned countless people into inconsiderate monsters, even in the most minute ways.

From Salon • Jun. 13, 2026

EVs and countless other electronic devices mostly use lithium-based batteries.

From MarketWatch • Jun. 9, 2026

After submitting countless applications, the 22-year-old found work as an insurance-claims adjuster in Chennai.

From The Wall Street Journal • Jun. 7, 2026

For any player, transitioning from NPB to MLB requires countless adjustments, large and small.

From Los Angeles Times • Jun. 5, 2026

By the time I retired in 1986, after thirty-three years at Langley, I had authored or coauthored twenty-six research reports and tutored countless students.

From "Reaching for the Moon" by Katherine Johnson

Vocabulary lists containing countless

Much Ado: Synonyms for "Many"

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Talk Like Shakespeare Day, List 6

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"Dogs at Work"

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