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Synonyms

boundless

American  
[bound-lis] / ˈbaʊnd lɪs /

adjective

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

    His boundless energy amazed his friends.

    Synonyms:
    illimitable, inexhaustible, unbounded, endless, limitless

boundless British  
/ ˈbaʊndlɪs /

adjective

  1. unlimited; vast

    boundless energy

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • boundlessly adverb
  • boundlessness noun

Etymology

Origin of boundless

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

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.

The variety of custom adventures will be boundless.

From The Wall Street Journal

“His vision and energy surrounding this great event remained boundless for 50 years.”

From Los Angeles Times

People now face such a vast menu of options due to technology that the choices in life seem boundless, but that abundance didn’t spark curiosity in Kelly.

From MarketWatch

The author was in awe of his father, at once afraid of him and in thrall to his boundless charisma and movie-star looks.

From The Wall Street Journal

But in some cases, experience matters more than the raw energy and boundless optimism that often characterizes younger entrepreneurs.

From The Wall Street Journal