"Sceptical" Natural Recordings by Native Speakers
To be sceptical means:
Having doubts or questioning the truth, legitimacy, or accuracy of something. A sceptic is someone who is reluctant to accept something as true or real without evidence or concrete proof.
Example: "Many people were sceptical about the new company's promise of high returns on investment."
A sceptic (also spelled skeptic in American English) is a person who questions the validity of a claim or the truth of a statement, often in a doubtfully inquiring or questioning manner.