| mistrustful(adjective, uncertain, nervous, doubtful, shaky) |
| moot(uncertain, doubtful, unsure) |
| mootable(uncertain, doubtful, unsure) |
| mousy(nervous, shy, meek, fearful, timid) |
| nervous(adjective, gentle, uncertain, modest, humble) |
| nondurable(adjective, unreliable, insecure, treacherous, incalculable) |
| open(adjective, uncertain, nervous, doubtful, hesitant) |
| perilous |
| perplexed(uncertain, doubtful, unsure) |
| pregnable(adjective, unreliable, insecure, treacherous, incalculable) |
| problematic(adjective, uncertain, nervous, doubtful, hesitant) |
| proper(quiet, modest, affected, meek, unassuming) |
| questioning(uncertain, nervous, doubtful, insecure, unsure) |
| recessive(adjective, modest, nervous, humble, hesitant) |
| reluctant(adjective, uncertain, modest, humble, doubtful) |
| reserved(adjective, quiet, simple, modest, humble) |
| reticent(adjective, quiet, simple, modest, nervous) |
| risky |
| rootless(adjective, uncertain, nervous, doubtful, shaky) |
| shady(adjective, false, uncertain, dishonest, doubtful) |