| floating(noun, adjective, feature, unstable, changeable) |
| floppy(noun, adjective, feature, unstable, changeable) |
| fluid(noun, adjective, feature, unstable, changeable) |
| fond(noun, adjective, feature, unstable, changeable) |
| forbearing(noun, adjective, feature, unstable, changeable) |
| foremost(adjective, adverb, feature, which, unsteady) |
| frail(noun, adjective, feature, unstable, changeable) |
| freaky(adjective, feature, irregular, which, unsteady) |
| frenzied(adjective, adverb, feature, which, unsteady) |
| fricative(noun, adjective, feature, unstable, changeable) |
| general(noun, adjective, feature, unstable, changeable) |
| generic(noun, adjective, feature, unstable, changeable) |
| glowing(noun, adjective, feature, unstable, changeable) |
| goodly(adjective, adverb, feature, which, unsteady) |
| handsome(feeling, attitude, beautiful, attraction) |
| haphazard(adjective, feature, characteristic, disorder, irregular) |
| happy(adjective, feature, unsteady, fussy) |
| haywire(noun, adjective, feature, unstable, changeable) |
| hearty(noun, adjective, feature, unstable, changeable) |
| hit-or-miss(adjective, characteristic, disorder, irregularity, sudden) |