countless

American  

[kount-lis] / ˈkaʊnt lɪs /

adjective

1. too numerous to count; innumerable.

   the countless stars.

   Synonyms:

   unlimited, myriad, endless, numberless

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countless British  

/ ˈkaʊntlɪs /

adjective

1. innumerable; myriad

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Other Word Forms

• countlessly adverb

Etymology

Origin of countless

First recorded in 1580–90; count ¹ + -less

Example Sentences

According to results published in the journal Science, the flow remains steady and unchanged even after countless atomic collisions.

From Science Daily

Tom Brady, a minority partner in the Raiders, produced countless heroics on his way to winning seven Super Bowls.

From The Wall Street Journal

She stops next to a patch of bare dirt where once a long kitchen table had hosted countless Thanksgiving dinners.

From The Wall Street Journal

They escaped the evil clutches of the gross neighbor kid next door, fled a toy collector’s plastic prison and even avoided an incinerator in one scene that scarred countless children around the world.

From Salon

Behind the scenes at the Commerce Department, countless firms and industries are begging for their own exceptions.

From The Wall Street Journal

Related Words

• endless
• myriad
• uncounted
• untold