boundless

adjective

bound·​less ˈbau̇n(d)-ləs 

: having no boundaries : vast

boundless possibilities

boundlessly adverb

boundlessness noun

Synonyms of boundless

• infinite
• endless

Examples of boundless in a Sentence

We were filled with boundless joy.

Her love for her family was boundless.

Recent Examples on the Web

Proponents who are pushing for online casinos in Maryland promise boundless tax revenue with minimal downsides, selectively ignoring who disproportionately pays the price of legalization. — Brianne Doura-Schawohl, Baltimore Sun, 19 Aug. 2026

Shaffelburg’s boundless enthusiasm and high work rate led one LAFC staffer to liken him to an excitable golden retriever, a comparison the player did not challenge. — Los Angeles Times, 18 Aug. 2026

The live stream promises boundless access and constant visibility, collapsing the boundary between the real and the performed, the private and the public, until living a life and broadcasting one become virtually indistinguishable. — Brady Brickner-Wood, New Yorker, 12 Aug. 2026

The choices seem boundless, but when push comes to the shove, these are the 10 best luxury hotels in Tokyo in 2026 (in alphabetical order). — Jake Emen, Robb Report, 6 Aug. 2026

Word History

First Known Use

1599, in the meaning defined above

Rhymes for boundless

• groundless
• soundless

Kids Definition

boundless

adjective

bound·​less ˈbau̇nd-ləs 

: having no boundaries or limits : vast

the boundless sky

boundlessly adverb

boundlessness noun