Synonyms of doubting

Verb

1. doubt, disbelieve, discredit

usage: consider unlikely or have doubts about; "I doubt that she will accept his proposal of marriage"

2. doubt, distrust, mistrust, suspect

usage: lack confidence in or have doubts about; "I doubt these reports"; "I suspect her true motives"; "she distrusts her stepmother"

Adjective

1. doubting, questioning, skeptical, sceptical, distrustful (vs. trustful)

usage: marked by or given to doubt; "a skeptical attitude"; "a skeptical listener"