| scaredy-cat(adjective, uncertain, anxious, nervous, doubtful) |
| sheepish(shy, worried, afraid, apprehensive, scared) |
| skittish(adjective, shy, worried, afraid, apprehensive) |
| solicitous(shy, worried, afraid, apprehensive, scared) |
| spineless(shy, worried, afraid, apprehensive, scared) |
| stiff(adjective, uncertain, anxious, nervous, doubtful) |
| suspicious(adjective, uncertain, anxious, nervous, doubtful) |
| taken aback(expression, adjective, perplexed, bewildered, befuddled) |
| tense(adjective, shy, worried, afraid, apprehensive) |
| tremulous(shy, worried, afraid, apprehensive, scared) |
| troubled(adjective, uncertain, anxious, nervous, doubtful) |
| uncertain(adjective, anxious, nervous, doubtful, worried) |
| unglued(adjective, anxious, apprehensive, perplexed, bewildered) |
| unmanly(shy, worried, afraid, apprehensive, scared) |
| upset |
| uptight(adjective, uncertain, anxious, nervous, doubtful) |
| weak(adjective, uncertain, anxious, nervous, doubtful) |
| weak-kneed(anxious, shy, worried, afraid, apprehensive) |
| worried(adjective, uncertain, anxious, nervous, shy) |
| worried sick(expression, adjective, uncertain, anxious, nervous) |