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Definition of boundless
boundless
/ˈbaʊnd.ləs/
bound · less
Adverb:boundlessly
boundless Lexical Profile
CEFR
B2
Grade
7
Tier
2
Usage
Top 10k
Syllables
2
boundless Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• adjective
1
Extremely great, inexhaustible, or unconstrained in degree, capacity, or intensity (especially of energy, enthusiasm, or optimism).
Example
"Her boundless curiosity and enthusiasm made her a favorite among the faculty."
2
Having no physical limits, boundaries, or discernible end; vast and infinite in extent.
Example
"The explorers gazed out across the boundless expanse of the Pacific Ocean."
Synonyms
View all synonyms for boundless Antonyms
View all antonyms for boundless• Rhymes for boundless
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Word Origin & Etymology
First recorded in the late 16th century, formed from the noun 'bound' (from Anglo-Norman 'bounde', meaning a limit or boundary) combined with the Old English privative suffix '-less'.
Cite this Entry
Wordmom. (2026). Definition of Boundless. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/boundless