adj. 25B6; adjective DISBELIEVING, unbelieving, sceptical, distrustful, mistrustful, suspicious, doubtful, dubious, unconvinced; cynical.
INCREDULOUS
Meaning of INCREDULOUS in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012