boundless

[bound-lis]

adjective

1. having no bounds; bound; infinite or vast; unlimited.

   His boundless energy amazed his friends.

   Synonyms: illimitable, inexhaustible, unbounded, endless, limitless

boundless

/ ˈbaʊndlɪs /

adjective

1. unlimited; vast

   boundless energy

Other Word Forms

• boundlessly adverb
• boundlessness noun

Word History and Origins

Origin of boundless¹

First recorded in 1585–95; bound ³ + -less

Example Sentences

Immediately I was in a world of possibilities, flooded with boundless energy and no fears.

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His reputation made him out to be the natural talent, who played with irrepressible joy and boundless creativity, but sometimes fell victim to lapses in concentration.

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Between boundless cheers and intermittent boos, historic milestones and horrifying heartbreaks, triumphant summers and torturous falls.

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Irglová exudes a boundless presence in this iteration of the Swell Season.

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From the moment Kirk died, Patel’s approach to the case has been characterized more by his boundless need for attention than by concerns about getting justice for Kirk.

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Related Words

• immeasurable 
• immense 
• incalculable 
• inexhaustible 
• infinite 
• limitless 
• tremendous 
• unending 
• unlimited 
• untold 
• vast