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1. Impossible or difficult to perceive by the mind or senses: an imperceptible drop in temperature.
2. So subtle, slight, or gradual as to be barely perceptible: an imperceptible nod.
im′per·cep′ti·bil′i·ty, im′per·cep′ti·ble·ness n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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|Adv.||1.||imperceptibly - in an imperceptible manner or to an imperceptible degree; "the power of the Secretary of State in London increased gradually but imperceptibly"|
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
adverb invisibly, slowly, subtly, little by little, unobtrusively, unseen, by a hair's-breadth, unnoticeably, indiscernibly, inappreciably The disease develops gradually and imperceptibly.
Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002
imperceptibly[ˌɪmpəˈseptəblɪ] ADV → imperceptiblemente
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
imperceptibly[ˌɪmpərˈsɛptɪbli] adv [develop, change] → imperceptiblement
Collins English/French Electronic Resource. © HarperCollins Publishers 2005
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
imperceptibly[ˌɪmpəˈsɛptəblɪ] adv → impercettibilmente
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995