| emaciated(adjective, dull, light, slight, fine) |
| feathery(adjective, light, slight, easy, thin) |
| filmy(adjective, light, slight, easy, thin) |
| fine(adjective, light, delicate, narrow) |
| fingerling |
| fisticuffer |
| fleshless(adjective, dull, slight, thin, delicate) |
| flimsy(adjective, light, slight, easy, thin) |
| floatable(adjective, light, slight, easy, thin) |
| floating(adjective, light, slight, easy, thin) |
| fluffy(adjective, light, slight, easy, thin) |
| forceless |
| fragile(adjective, dull, light, slight, fine) |
| friable(adjective, light, slight, easy, thin) |
| frothy(adjective, light, slight, easy, thin) |
| gangling(adjective, dull, light, slight, fine) |
| gangly(adjective, dull, light, slight, fine) |
| gaunt(adjective, dull, light, slight, fine) |
| gossamery(adjective, light, slight, easy, thin) |
| graceful(adjective, light, slight, easy, thin) |