countless

adjective

count·​less ˈkau̇nt-ləs 

: too numerous to be counted : myriad, many

countlessly adverb

Synonyms of countless

• many
• numerous
• innumerable
• numberless

Examples of countless in a Sentence

There are countless reasons why that would not be a good idea.

I've been there countless times.

Recent Examples on the Web

In Gary, there were countless stories of people who dealt for two weeks with spoiled food, hot weather, and cold showers because of power outages. — Lauren Victory, CBS News, 29 Sep. 2026

Over the years, the queen of pop has hit the VMAs main stage countless times—each time delivering a pop culture moment that has been remembered for years to come. — Christian Allaire, Vogue, 28 Sep. 2026

Their attention naturally turns to succession, ownership, governance, investment performance and the countless decisions required to safeguard what previous generations have built. — Walid Chiniara, Forbes.com, 28 Sep. 2026

And there were countless leaks on Sunday morning to national insiders about how many phone calls the Giants were making around the league trying to upgrade the QB position and team. — Pat Leonard, New York Daily News, 27 Sep. 2026

Word History

First Known Use

1593, in the meaning defined above

Kids Definition

countless

adjective

count·​less ˈkau̇nt-ləs 

: too numerous to be counted : innumerable