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Synonyms

unbounded

American  
[uhn-boun-did] / ʌnˈbaʊn dɪd /

adjective

  1. having no limits, borders, or bounds.

    Synonyms:
    immeasurable, infinite, vast, immense, limitless
  2. unrestrained; uncontrolled.

    unbounded enthusiasm.

    Synonyms:
    immoderate, unconfined

unbounded British  
/ ʌnˈbaʊndɪd /

adjective

  1. having no boundaries or limits

"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

Etymology

Origin of unbounded

First recorded in 1590–1600; un- 1 + bound 3 + -ed 3

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.

See Examples For:

“Not an unbounded and unlimited entity with high degrees of autonomy – but AI that is carefully calibrated, contextualized, within limits.”

From Barron's Apr. 4, 2026

The only motivating factor, ever, was Mr. Paxton’s unbounded ambition.

From The Wall Street Journal Mar. 5, 2026

The court has previously upheld limited emergency entries, but always with clearly defined exigencies, not the unbounded, unverifiable standard Montana now asks it to adopt.

From Slate Jul. 3, 2025

In My First Coup d'Etat, Mahama Jr describes himself as "an observant child with an active imagination and an unbounded curiosity".

From BBC Nov. 19, 2024

In discussing the large-scale structure of the Cosmos, astronomers are fond of saying that space is curved, or that there is no center to the Cosmos, or that the universe is finite but unbounded.

From "Cosmos" by Carl Sagan

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