boundless
Americanadjective
adjective
Other Word Forms
Etymology
Origin of boundless
Explanation
Something that's boundless has no limits or restrictions. Your dog's boundless energy might leave you exhausted, since it never seems to end. The adjective boundless is often used to mean "huge" or "immense." Your local Christmas tree farm, for example, might seem boundless as you walk through the rows of evergreens that stretch as far as you can see. If your little brother has boundless enthusiasm for superheros, he's probably capable of talking about Batman for hours. The noun bound originally meant "limit," from the Old French word bonde, "limit or boundary," so boundless means "without limit."
Vocabulary lists containing boundless
Power Suffix: -less
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
The Call of the Wild
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
Prince (1958-2016) Tribute List
Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
His knowledge of the ancient world was boundless; his specialist interest was gemstones.
From BBC • Apr. 28, 2026
A flood of light separates her from a boundless, dark background.
From The Wall Street Journal • Apr. 17, 2026
The hallmark of the “Khongian” multiverse, according to her agent, Marya Spence, are the boundless souls contained within her characters’ ordinary bodies.
From Los Angeles Times • Apr. 13, 2026
One would expect boundless enthusiasm on management’s part after a day like that, but CEO Christian Weedbrook is maintaining a “business as usual” approach as he focuses on the company’s long-term goals.
From Barron's • Mar. 30, 2026
Whatever their reasons, they took their considerable earnings, loaded up with provisions in the Paradise Islands off the coast of Oxscini, and set a course for the blue and boundless west.
From "The Reader" by Traci Chee
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
