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

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

Get Outside Hike in Amicalola Falls State Park The Blue Ridge Mountains, Carter’s Lake, and three area rivers offer outstanding natural beauty with boundless autumn adventure. — Katie Strasberg Rousso, Southern Living, 15 Oct. 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