Synonyms and related words :
Pyrrhonism, apprehension, apprehensiveness, awake a doubt, be diffident, be doubtful, be dubious, be possessive, be skeptical, be uncertain, beware, cageyness, call in question, challenge, chariness, contest, diffidence, dispute, distrust, distrustfulness, doubt, doubtfulness, dubiety, dubiousness, greet with skepticism, half believe, half-belief, harbor suspicions, have reservations, leeriness, misdoubt, misgive, misgiving, mistrustfulness, query, question, raise a question, reservation, scepticism, scruple, scrupulousness, self-doubt, shadow of doubt, skepticalness, skepticism, smell a rat, suspect, suspicion, suspiciousness, throw doubt upon, total skepticism, treat with reserve, uncertainty, unsureness, wariness