not guarded; unprotected; undefended.
open; frank; guileless: an unguarded manner.
exposed to attack or capture by the opponent without recourse by the player, as a card, chess piece, etc.: an unguarded queen of clubs; an unguarded pawn.
not cautious or discreet; careless: In an unguarded moment he had told her about his affair.
without a safeguard, as a cover, barrier, or shield, for protection: an unguarded buzz saw.

Origin of unguarded

First recorded in 1585–95; un-1 + guarded
Related formsun·guard·ed·ly, adverbun·guard·ed·ness, noun

Synonyms for unguarded

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for unguarded

Contemporary Examples of unguarded

Historical Examples of unguarded

  • Come, if you have done it in an unguarded moment there is no help for it!

    A Hero of Our Time

    M. Y. Lermontov

  • Clearetus the captain learnt of this place, that it was but a little one and unguarded.



  • She knew music too, and in an unguarded moment Peter admitted that he had studied.

    The Vagrant Duke

    George Gibbs

  • Yet here in the turret, unguarded by insulation, I could say nothing.

  • In other words, he bided his time, and when he did strike, struck at an unguarded place.

    In the Days of Drake

    J. S. Fletcher

British Dictionary definitions for unguarded



unprotected; vulnerable
guileless; open; frank
incautious or careless
Derived Formsunguardedly, adverbunguardedness, 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 unguarded

1590s, "not furnished with a guard," from un- (1) "not" + guarded. Sense of "not on one's guard, not taking heed" is attested from 1630s.

Online Etymology Dictionary, © 2010 Douglas Harper