| fluffy(adjective, light, smooth, soft, slight) |
| gossamery(adjective, light, weak, soft, slight) |
| ineffectual |
| inferior |
| nugatory(adjective, slight, small, unimportant, commonplace) |
| pale |
| petty(adjective, light, weak, slight, easy) |
| spongy(adjective, light, smooth, soft, slight) |
| subtile(adjective, rarity) |
| svelte |
| undependable(adjective, uncertain, feeble, shaky, hesitant) |
| unimportant(adjective, slight, small) |
| unlikely(adjective, light, thin, exceptional, short) |
| unsupported(adjective, false, unwarranted, untrue, justification) |
| vacillant |
| vacillating(adjective, weak, delicate, ill, sick) |
| vitreous(adjective, state, structure, frailty) |
| wishy-washy(weak, slight, trivial, unimportance, infirm) |
| wispy(adjective, light, weak, thin, delicate) |
| ailing(adjective, weak, delicate, ill, sick) |