| subjacent(adjective, low, inferior, minor, smaller) |
| subordinate(adjective, light, slight, lower, low) |
| subservient(adjective, inferior, insignificant, relief, reserve) |
| subsidiary(adjective, light, slight, low, small) |
| substract(adjective, lower, inferior, insignificant, relief) |
| tacky(adjective, light, slight, low, small) |
| third-string(adjective, low, inferior, insignificant, minor) |
| tributary(adjective, lower, inferior, insignificant, relief) |
| trifling(adjective, light, weak, slight, small) |
| trivial(adjective, light, weak, low, small) |
| two-bit(adjective, light, weak, low, small) |
| two bit(expression, adjective, slight, lower, unimportant) |
| unconsequential(adjective, weak, unimportant, feeble, frail) |
| under(adjective, light, slight, low, inferior) |
| underfed(adjective, weak, feeble, frail, tiny) |
| undersized(adjective, weak, low, inferior, insignificant) |
| undeveloped(adjective, weak, feeble, frail, tiny) |
| unimportant(adjective, light, slight, low, small) |
| unsound(adjective, weak, feeble, frail, tiny) |
| unsubstantial(adjective, weak, feeble, frail, tiny) |