skeptical
doubter
freethinker
infidel
minimifidian
pyrrhonist
unbeliever
intellect
intellectual
doubting thomas
pessimist
skepticism
agnostic
alarmism
astronomer
atheist
caricaturist
cynic
deist
determinist
essayist
evolutionist
hater
individualist
materialist
moralist
optimist
optimists
punster
realist
rhetorician
satirist
scoffer
skeptics
statistician
Septic
antiseptic
epileptic
peptic
septic
believer