Synonyms for «certain doubts»

uncertain various several dubious questionable numerous much considerable skeptical specific possible particular remaining significant slight different potential little tentative sufficient necessary doubtful deep conflicting suspicious vague strong sceptical serious similar varying important widespread contentious public scientific great justifiable unknown growing substantial enough severe initial additional unclear constant critical differing

doubt doubters uncertainty worries confusion skepticism suspicion concerns questions misconceptions difficulties certainty disputes misgivings fears objections thoughts scepticism ambiguity opinions speculation misunderstandings beliefs discrepancies trouble confidence circumstances conclusions mistakes possibilities qualms hesitation inquiries allegations debate assertions evidence notions reasons assumptions disagreement mysteries caveats issues mind faith anxiety apprehension hypotheses decisions