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impalpable

[im-pal-puh-buh l] /ɪmˈpæl pə bəl/
adjective
1.
not palpable; incapable of being perceived by the sense of touch; intangible.
2.
difficult for the mind to grasp readily or easily:
impalpable distinctions.
3.
(of powder) so fine that when rubbed between the fingers no grit is felt.
Origin
1500-1510
1500-10; im-2 + palpable
Related forms
impalpability, noun
impalpably, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for impalpably

impalpable

/ɪmˈpælpəbəl/
adjective
1.
imperceptible, esp to the touch: impalpable shadows
2.
difficult to understand; abstruse
Derived Forms
impalpability, noun
impalpably, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for impalpably

impalpable

adj.

c.1500, from French impalpable, from Medieval Latin impalpabilis, from assimilated form of in- "not, opposite of" (see in- (1)) + palpabilis (see palpable). Figurative use from 1774. Related: Impalpably; impalpability.

Online Etymology Dictionary, © 2010 Douglas Harper
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