| teachable(adjective, quiet, gentle, meek, easygoing) |
| tense(shy, worried, afraid, apprehensive, scared) |
| tentative(weak, uncertain, doubtful, indefinite, wavering) |
| terror-stricken(adjective, frightened) |
| thin(adjective, weak, deficient) |
| tremulous(shy, worried, afraid, apprehensive, scared) |
| undecided(weak, uncertain, doubtful, indefinite, wavering) |
| undetermined(weak, uncertain, doubtful, indefinite, wavering) |
| uneasy(anxious, shy, worried, afraid, apprehensive) |
| unmanned |
| unresisting(quiet, gentle, humble, subdued, submissive) |
| unsettled(weak, uncertain, doubtful, indefinite, wavering) |
| unstable(adjective, weak, uncertain, doubtful, hesitant) |
| usable(adjective, quiet, gentle, meek, easygoing) |
| vacillant |
| vacillating(adjective, weak, soft, uncertain, feeble) |
| waffling(weak, uncertain, doubtful, indefinite, wavering) |
| weakened |
| weakhearted |
| weakling |