Impalpable adjective – Not capable of being perceived by the sense of touch. Unphysical and impalpable are semantically related In some cases you can use "Unphysical" instead an adjective "Impalpable".
Defintions of Unphysical not found. Impalpable and unphysical are semantically related in not physical topic. Sometimes you can use "Impalpable" instead an adjective "Unphysical".