| impractical |
| in the clouds(expression, adjective, idiom, intellectual, unreal) |
| incorporate(heavenly, incorporeal, nonmaterial) |
| incorporeal(heavenly, nonmaterial) |
| incredible(adjective, happy, perfect, fantastic, extravagant) |
| indefinite(adjective, unclear, indistinct, indistinguishable) |
| indistinct(adjective, unclear, indistinguishable) |
| insensible(heavenly, incorporeal, nonmaterial) |
| intangible(adjective, fake, false, heavenly, imaginary) |
| invented(adjective, fake, false, fantastic, abstract) |
| ivory-tower(adjective, intellectual, abstract, unreal, unattainable) |
| kinky(adjective, happy, perfect, fantastic, extravagant) |
| mental(adjective, intellectual, abstract, unreal, unattainable) |
| mercurial(adjective, intellectual, abstract, unreal, unattainable) |
| metaphysical(heavenly, incorporeal, nonmaterial) |
| momentary(adjective, brief, fleeting) |
| mythical(adjective, fake, false, negative, fantastic) |
| nebulous(fake, false, unclear, imaginary, fanciful) |
| nonmaterial(heavenly, incorporeal) |
| nonphysical(adjective, heavenly, immaterial, incorporeal, nonmaterial) |