| lack of confidence(noun, expression, idiom, trouble, concern) |
| misgiving(noun, trouble, concern, anxiety, confusion) |
| mistrust(noun, trouble, concern, anxiety, confusion) |
| moodiness |
| mystification(noun, trouble, concern, anxiety, confusion) |
| nonsense(flightiness, randomness) |
| nonuniformity |
| perplexity(noun, trouble, concern, anxiety, confusion) |
| pliancy(noun, anxiety, weakness, uncertainty, shake) |
| puzzle(noun, trouble, concern, anxiety, confusion) |
| puzzlement(noun, trouble, concern, anxiety, confusion) |
| qualm(noun, trouble, concern, anxiety, confusion) |
| quandary(noun, trouble, concern, anxiety, confusion) |
| query(noun, trouble, concern, anxiety, confusion) |
| questionableness(noun, trouble, concern, anxiety, confusion) |
| reserve(noun, trouble, concern, anxiety, confusion) |
| riskiness |
| roughness |
| scruple(noun, trouble, concern, anxiety, confusion) |
| skepticism(noun, trouble, concern, anxiety, confusion) |