impalpable

About 0.19 uses per million words.

Meaning

1. adjective Incapable of being touched or felt; incorporeal, intangible.
2. adjective Not able to be perceived, or able to be perceived only with difficulty; insubstantial, thin.
3. adjective Not easily grasped (mentally) or understood.

Similar words

intangible unperceivable imperceptible subtle elusive unpalpable unsensible intactible imperceivable insensible

Often followed by

powder and dust as to but testis mud testes

Word family

impalpabilities impalpability impalpably