| concern(noun, trouble, worry, distress, anxiety) |
| seasickness(noun, disease, nausea, biliousness) |
| twinge(noun, verb, doubt, integrity, misgiving) |
| worry(noun, verb, trouble, concern, distress) |
| hesitancy(noun, verb, trouble, concern, delay) |
| pang(noun, verb, worry, concern, shame) |
| skepticism(noun, trouble, concern, delay, difficulty) |
| squeamishness(noun, doubt, hatred, integrity, sickness) |
| apprehensiveness(noun, anxiety, doubt, fear, scruple) |
| disquiet(noun, trouble, worry, concern, difficulty) |
| dread(noun, distress, anxiety, doubt, fear) |
| objection(noun, doubt, misgiving, disinclination, unwillingness) |
| penitence(noun, worry, concern, distress, anxiety) |
| foreboding(noun, feeling, distress, anxiety, idea) |
| funny feeling(noun, expression, feeling, idea, uncertainty) |
| nausea(noun, sickness, revulsion, vomiting, faintness) |
| nervousness(noun, anxiety, doubt, fear, apprehension) |
| perturbation(noun, anxiety, doubt, fear, nervousness) |
| scepticism(noun, unbelief doubt) |
| unease(noun, worry, distress, anxiety, care) |