Synonyms of uncertainties

1 Syllable
qualm
2 Syllables
trouble, scruple, mistrust, query, wonder, puzzle, distrust, guesswork, disquiet, worry, concern
3 Syllables
reserve, puzzlement, skepticism, vagueness, quandary, dilemma, doubtfulness, misgiving, anxiety, suspicion, confusion, dubiety
4 Syllables
perplexity, contingency, indecision, oscillation, hesitancy, hesitation, bewilderment, uneasiness, conjecture, ambiguity
5 Syllables
irresolution, ambivalence, questionableness, mystification, incertitude
6 Syllables
inconclusiveness
7 Syllables
unpredictability