1.NounThe quality of being impalpable; intangibility.
Physical imperceptibility; incapability of being sensed by the tactual faculties.
Ungraspability by or inapprehensibility to the mind.
2.NounPhysical imperceptibility; incapability of being sensed by the tactual faculties.
3.NounUngraspability by or inapprehensibility to the mind.