impalpability vs intangibleness

impalpability and intangibleness both are nouns.

Word	Noun	Adjective	Verb	Adverb
impalpability	Yes	No	No	No
intangibleness	Yes	No	No	No

As nouns, impalpability and intangibleness are synonyms defined as:

impalpability and intangibleness: the quality of being intangible and not perceptible by touch

Other synonyms of impalpability include intangibility.

impalpability (noun)	intangibleness (noun)
the quality of being intangible and not perceptible by touch	the quality of being intangible and not perceptible by touch
Ungraspability by or inapprehensibility to the mind.