countless

adjective count·less \ ˈkau̇nt-ləs \
Updated on: 23 May 2018

Definition of countless

: too numerous to be counted : myriad, many

countlessly

adverb

Examples of countless in a Sentence

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

  2. I've been there countless times.

Recent Examples of countless from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'countless.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of countless

1588

in the meaning defined above

See Words from the same year
NEW! Time Traveler

countless Synonyms


COUNTLESS Defined for English Language Learners

countless

Definition of countless for English Language Learners

  • : too many to be counted : very many


COUNTLESS Defined for Kids

countless

adjective count·less \ ˈkau̇nt-ləs \

Definition of countless for Students

: too many to be counted
  • countless grains of sand


Seen and Heard

What made you want to look up countless? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

to coax or persuade

Get Word of the Day daily email!

Test Your Vocabulary

May 2018 Words of the Day Quiz

  • spring-flowers
  • Which is a synonym of raillery?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!