| probability(noun, storm, risk, possibility, hazard) |
| questionability |
| questionableness(noun, anxiety, doubt, question, vagueness) |
| randomness(noun, chance, unevenness, inequality, variability) |
| reluctance(noun, difficulty, anxiety, confusion, doubt) |
| roughness(noun, vagueness, unevenness, inequality, variability) |
| shyness(noun, irresolution) |
| slipperiness(risk, hazard, exposure, peril) |
| threat(noun, storm, risk, hazard, danger) |
| transience(noun, anxiety, weakness, shake, disquiet) |
| unease(noun, trouble, worry, concern, anxiety) |
| unevenness(noun, coarseness, roughness, irregularity, instability) |
| unrest(noun, upset, anxiety, doubt, nervousness) |
| unsettledness(anxiety, nervousness, restlessness) |
| unsettlement |
| vague(noun, adjective) |
| variation(noun, change, flaw, coarseness, roughness) |
| vicissitude(noun, change, fluctuation, permutation) |
| wavering(noun, difficulty, anxiety, weakness, confusion) |
| worriment(noun, trouble, worry, concern, anxiety) |