boundless

adjective

bound·​less ˈbau̇n(d)-ləs How to pronounce boundless (audio)
Synonyms of boundless
: having no boundaries : vast
boundless possibilities
boundlessly adverb
boundlessness noun

Synonyms of boundless

Relevance
See All Synonyms & Antonyms in Thesaurus

Examples of boundless in a Sentence

We were filled with boundless joy. Her love for her family was boundless.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
An album-length EP by the 20-year-old producer is a dizzying and boundless collage of collages, using free-jazz logic and digital overload to chart new emotional terrain. — Kieran Press-Reynolds, Pitchfork, 26 Oct. 2026 The Soviets and their allies might have sophisticated weaponry and boundless barbarity. — Scott Simon, NPR, 24 Oct. 2026 After two steadying years in the Marine Corps, McQueen made his way back to New York City with a chip on his shoulder and a smoldering anger masked by surprisingly boyish charm and boundless energy. — Hadley Hall Meares, Vanity Fair, 20 Oct. 2026 In the mythology of the steppe, sun, moon, wind, and Tengri—the supreme deity representing the boundless sky—possess as much character and will as living humans and their ancestor spirits. — Yulia Denisyuk, Condé Nast Traveler, 14 Oct. 2026 See All Example Sentences for boundless

Word History

First Known Use

1599, in the meaning defined above

Time Traveler
The first known use of boundless was in 1599

Rhymes for boundless

See All Rhymes for boundless

Browse Nearby Words

boundingly
boundless
boundness
See all Nearby Words

Cite this Entry

“Boundless.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/boundless. Accessed 27 Oct. 2026.

Copy Citation

Kids Definition

boundless

adjective
bound·​less ˈbau̇nd-ləs How to pronounce boundless (audio)
: having no boundaries or limits : vast
the boundless sky
boundlessly adverb
boundlessness noun
Love words? Need even more definitions?

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

Last Updated: - Updated example sentences

More from Merriam-Webster

Word of the Day

Listen to the pronunciation of milieu

See Definitions and Examples »

Popular in Grammar & Usage

See More

Merriam-Webster’s Great Big List of Words You Love to Hate

'Can' vs. 'May'

'Affect' vs. 'Effect'

More Commonly Mispronounced Words

'A' or 'an'? What about before 'h'? An Indefinite Article Guide
See More

Popular in Wordplay

See More

The Longest Long Words List

9 Words That Sound Like Insults But Aren't

12 Lovely and Unusual Words for the Natural World

Why do we 'bury the lede?'

'Za' and 9 Other Words to Help You Win at SCRABBLE
See More

Popular

See More

Merriam-Webster’s Great Big List of Words You Love to Hate

The Longest Long Words List

9 Words That Sound Like Insults But Aren't
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
different halloween monsters in silhouette
A Monstrous Vocab Quiz Words That Go Bump in the Night
See All