sceptic
Pronunciation: /ˈskɛptɪk/
( archaic & North American skeptic)
noun
adjective
- another term for sceptical

Origin:
late 16th century (in sceptic (sense 2 of the noun)): from French sceptique, or via Latin from Greek skeptikos, from skepsis 'inquiry, doubt'

Spelling help
Remember that sceptic begins with sc- (the spelling skeptic is American).

Do not confuse septic with sceptic. Septic means 'infected with bacteria' ( septic wounds), whereas sceptic means 'a person who questions accepted beliefs or statements' ( numerous sceptics poured scorn on his claim).