having no bounds; infinite or vast; unlimited: His boundless energy amazed his friends.

Origin of boundless

First recorded in 1585–95; bound3 + -less
Related formsbound·less·ly, adverbbound·less·ness, noun

Synonyms for boundless Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for boundless

Contemporary Examples of boundless

Historical Examples of boundless

British Dictionary definitions for boundless



unlimited; vastboundless energy
Derived Formsboundlessly, adverbboundlessness, noun
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

Word Origin and History for boundless

1590s, from bound (n.) + -less. Related: Boundlessly; boundlessness.

Online Etymology Dictionary, © 2010 Douglas Harper