doubtful synonyms

theoretical vague unclear problematic questionable indefinite debatable indeterminate equivocal indistinct in question

lost confused uncertain disturbed questioning puzzled cynical dubious unsure distracted baffled unresolved hesitant ambivalent doubting unsettled undecided flustered incredulous perplexed disconcerted wavering faltering hesitating indecisive agnostic faithless distrustful undetermined vacillating irresolute skeptical discomposed