| inane(silly, foolish, fantastic, unwise, impractical) |
| inapplicable(wild, unreasonable, useless, absurd, abstract) |
| inappropriate(silly, foolish, fantastic, unwise, impractical) |
| indiscreet(adjective, impractical, half-baked, doomed) |
| inefficacious(wild, unreasonable, useless, absurd, abstract) |
| infeasible(wild, unreasonable, useless, absurd, unrealistic) |
| ingenious(adjective, fantastic, original, extravagant, inventive) |
| inoperable(wild, unreasonable, useless, absurd, abstract) |
| insane(silly, foolish, fantastic, unwise, impractical) |
| inscrutable(supernatural, spiritual, mystical) |
| inspired(adjective, fantastic, original, extravagant, ingenious) |
| intellectual(adjective, vague, abstract, logical, unreal) |
| inventive(adjective, fantastic, original, extravagant, ingenious) |
| irresponsible(silly, foolish, fantastic, unwise, impractical) |
| ivory-tower(adjective, wild, silly, unreasonable, useless) |
| kindhearted |
| lofty(adjective, perfect, big, polite, original) |
| loony(silly, foolish, fantastic, unwise, impractical) |
| ludicrous(silly, foolish, fantastic, unwise, impractical) |
| magic(supernatural, imaginary, spiritual, mystical, nonrational) |