impalpable (adj.)
- airy
- astral
- atomic
- bodiless
- chalky
- corpuscular
- crushed
- disembodied
- dusty
- efflorescent
- embryonic
- ethereal
- evanescent
- farinaceous
- fine
- flaky
- floury
- germinal
- ghostly
- granular
- grated
- ground
- immaterial
- imperceptible
- imponderable
- inappreciable
- incorporate
- incorporeal
- indiscernible
- infinitesimal
- insensible
- insubstantial
- intangible
- invisible
- mealy
- microcosmic
- microscopic
- milled
- molecular
- nonmaterial
- nonphysical
- occult
- otherworldly
- phantom
- powdered
- powdery
- psychic
- pulverized
- scaly
- scurfy
- shadowy
- shredded
- spiritual
- subatomic
- supernatural
- tenuous
- thin
- transmundane
- ultramicroscopic
- unapparent
- unearthly
- unembodied
- unextended
- unobservable
- unperceivable
- unseeable
- unsubstantial
- unworldly
- weightless
