countless

adjective

count·​less ˈkau̇nt-ləs 

: too numerous to be counted : myriad, many

countlessly adverb

Synonyms

• innumerable
• innumerous
• myriad
• numberless
• uncountable
• uncounted
• unnumbered
• untold

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

He's been the subject of poems and stories, movies and songs, invoked as the judge of naughty or nice, the recipient of countless cookies and glasses of milk to sustain him on his journey. —Michael Hoge, arkansasonline.com, 22 Dec. 2024

Its success has spawned countless covers by iconic artists from Ariana Grande to Michael Bublé and has permeated pop culture through movies like Love Actually. —Rebecca Aizin, People.com, 21 Dec. 2024

Too many of their games this season have resembled basketball matches where both sides run from end-to-end and have countless opportunities to score. —Jay Harris, The Athletic, 20 Dec. 2024

The actor—known and beloved by generations as the voices of Star Wars' Darth Vader and The Lion King's Mufasa, among countless other star turns across stage and screen—was 93 years old. —Benedict Cosgrove, Newsweek, 20 Dec. 2024

Word History

First Known Use

1588, in the meaning defined above

Kids Definition

countless

adjective

count·​less ˈkau̇nt-ləs 

: too numerous to be counted : innumerable