trouble wonder uncertainty ambivalence uneasiness insecureness unstableness alternation ambiguity puzzle immaturity Questionableness weakness wobbliness guesswork worry vulnerability dilemma puzzlement vagueness changeableness irresolution wavering fluctuation suspicion restlessness conjecture vacillation mutability doubtfulness incertitude capriciousness impermanence Unfixedness transience anxiety dubiety changeability concern perplexity disequilibrium mistrust fickleness inquietude volatility mystification disquiet query misgiving inconsistency contingency bewilderment fitfulness shakiness distrust unsteadiness instability frailty confusion quandary unsureness pliancy insecurity scarcity fluidity lack of confidence unpredictability inconclusiveness variability hesitancy scruple oscillation qualm hesitation indecision unreliability uncommonness irregularity flightiness skepticism explosiveness precariousness reserve ricketiness