impalpable

im·pal·pa·ble  (m-plp-bl)

adj.

1. Not perceptible to the touch; intangible.

2. Difficult to perceive or grasp by the mind.

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im·palpa·bili·ty n.

im·palpa·bly adv.

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impalpable

Adjective

Formal

1. not able to be felt by touching: impalpable shadows

2. difficult to understand

impalpability n

Thesaurus

Adj.	1.	impalpable - incapable of being perceived by the senses especially the sense of touch; "the intangible constituent of energy"- James Jeans intangible abstract - existing only in the mind; separated from embodiment; "abstract words like `truth' and `justice'"
	2.	impalpable - imperceptible to the senses or the mind; "an impalpable cloud"; "impalpable shadows"; "impalpable distinctions"; "as impalpable as a dream" imperceptible, unperceivable - impossible or difficult to perceive by the mind or senses; "an imperceptible drop in temperature"; "an imperceptible nod"; "color is unperceivable to the touch" palpable, tangible - capable of being perceived; especially capable of being handled or touched or felt; "a barely palpable dust"; "felt sudden anger in a palpable wave"; "the air was warm and close--palpable as cotton"; "a palpable lie"
	3.	impalpable - not perceptible to the touch; "an impalpable pulse" imperceptible, unperceivable - impossible or difficult to perceive by the mind or senses; "an imperceptible drop in temperature"; "an imperceptible nod"; "color is unperceivable to the touch"