A cynic habitually expects the worst of people and doubts their sincerity, while a skeptic questions claims or beliefs until they see proof. If someone assumes a gift comes with strings attached, that is cynicism; if someone wants to see the data before believing a study, that is scepticism.
The core difference
A cynic distrusts people's motives; a skeptic withholds belief until evidence is shown.
- cynic — a person who habitually expects the worst of people and doubts their sincerity or motives: he's such a cynic that he assumes every gift comes with strings attached.
- skeptic — someone who habitually questions claims or beliefs that most people accept without proof: as a skeptic, she wanted to see the data before believing the study.
How to tell them apart
The key difference is what each person doubts. A cynic doubts people, assuming self-interest or bad faith lies behind their actions. A skeptic doubts claims, withholding belief until there is enough evidence to justify it. A skeptic can trust people's intentions completely while still demanding proof for a specific assertion; a cynic can accept plenty of evidence while still assuming the worst about why someone is offering it.
Cynic has an older meaning too: capitalised, Cynic referred to a school of ancient Greek philosophers who prized virtue and self-control over material comfort, which is where the everyday word ultimately comes from, even though the modern sense has drifted a long way from that philosophy.
