| fluctuation(noun, change, anxiety, weakness, shake) |
| inconsistency(noun, anxiety, weakness, shake, flaw) |
| irregularity(noun, anxiety, weakness, shake, disquiet) |
| misdoubt(doubt, misgiving, pang) |
| peril(noun, storm, risk, hazard, danger) |
| puzzle(noun, fix, difficulty, anxiety, twist) |
| reserve(noun, anxiety, doubt, vagueness, hesitation) |
| scepticism |
| trouble(noun, worry, concern, anxiety, doubt) |
| weakness(noun, anxiety, shake, disquiet, wavering) |
| agnosticism(noun, difficulty, anxiety, confusion, doubt) |
| bewilderment(noun, fix, difficulty, anxiety, twist) |
| changeability(noun, anxiety, weakness, shake, chance) |
| changeableness(noun, anxiety, weakness, doubt, shake) |
| cynicism(noun, doubt, impression, guess, apprehension) |
| danger(noun, storm, risk, hazard, exposure) |
| diffidence(noun, difficulty, anxiety, confusion, doubt) |
| equivocality(noun, doubt, obscurity, vagueness, abstruseness) |
| fear(noun, upset, worry, concern, difficulty) |
| foreboding(noun, trouble, worry, concern, anxiety) |