- very slight, gradual, or subtle: the imperceptible slope of the road.
- not perceptible; not perceived by or affecting the senses.
- something not capable of being perceived by the senses: metaphysical speculation about imperceptibles.
Origin of imperceptible
SynonymsSee more synonyms on Thesaurus.com
2. hidden, unperceivable, undetectable.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for imperceptible
The nature of the harm allegedly caused by Goddard was “subtle, imperceptible and pernicious.”Exclusive: Bryan Singer Faces New Teen Sex Assault Lawsuit
May 4, 2014
The number of straight men who change their name upon marriage, remains so tiny as to be imperceptible.Gay People Can Be as Traditional and Boring as Straight People
May 30, 2013
He might have overcome his drawl, lobbying past, and imperceptible poll ratings to win the GOP nomination.Haley Barbour's Wife Vetoes 2012 Presidential Bid
April 26, 2011
God's beginnings are imperceptible, whether in the region of soul or of matter.Weighed and Wanting
He was accused of putting on an imperceptible touch of rouge.The Memoirs of Louis XIV., His Court and The Regency, Complete
Duc de Saint-Simon
He made no reply, but questioned her by an imperceptible movement of the eyelids.The Downfall
Those which are equal are imperceptible, and we call them transparent.Timaeus
Little by little a faint hope crept into my mind—fragile, often imperceptible.The Prodigal Returns
- too slight, subtle, gradual, etc, to be perceived
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 imperceptible
Online Etymology Dictionary, © 2010 Douglas Harper