| disbelieve(verb, decline, reject, disregard, oppose) |
| skepticism(noun, trouble, concern, delay, anxiety) |
| vacillate(verb, activity, dispute, stick, challenge) |
| apprehension(noun, upset, trouble, worry, concern) |
| incredulity(noun, anxiety, uncertainty, impression, guess) |
| waver(verb, activity, dispute, stick, challenge) |
| hesitate(verb, activity, dispute, stick, challenge) |
| reservation(noun, anxiety, condition, request, question) |
| suspense(noun, trouble, worry, concern, anxiety) |
| hesitancy(noun, trouble, feeling, concern, delay) |
| scepticism(noun, delay, condition, uncertainty, pause) |
| wonder(noun, verb, trouble, consider, concern) |
| agnosticism(noun, anxiety, shame, uncertainty, lack) |
| irresolution(noun, trouble, concern, delay, anxiety) |
| misdoubt(noun, verb, dispute, challenge, certain) |
| problem(noun, feeling, concern, difficulty, anxiety) |
| quandary(noun, trouble, fix, feeling, concern) |
| wariness(noun, uncertainty, impression, guess, apprehension) |
| worry(noun, verb, trouble, concern, distress) |
| anxiety(noun, upset, trouble, worry, concern) |