n. 25B6; adjective
the moonlight made things seem intangible : IMPALPABLE, untouchable, incorporeal, discarnate, abstract; ethereal, insubstantial, airy; ghostly, spectral, unearthly, supernatural; Philosophy immaterial.
an intangible atmosphere : INDEFINABLE, indescribable, inexpressible, nameless; vague, obscure, unclear, indefinite, subtle, elusive, fugitive.