free from guile; sincere; honest; straightforward; frank.

Origin of guileless

First recorded in 1720–30; guile + -less
Related formsguile·less·ly, adverbguile·less·ness, noun

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

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Historical Examples of guileless

British Dictionary definitions for guileless



free from guile; ingenuous
Derived Formsguilelessly, adverbguilelessness, 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 guileless

1727, from guile + -less. Related: Guilelessly; guilelessness.

Online Etymology Dictionary, © 2010 Douglas Harper