scep ‧ ti ‧ cal BrE AmE British English , skeptical American English /ˈskeptɪk ə l/ adjective
tending to disagree with what other people tell you SYN doubtful
sceptical about/of
I’m extremely sceptical about what I read in the press.
Environmental groups are sceptical of the government’s claims.
highly/deeply sceptical
He is highly sceptical of the reforms.
‘You can trust me,’ he said. Jane looked sceptical.
—sceptically /-kli/ adverb