I am always sceptical of new scientific claims until they are thoroughly tested.

She looked at him sceptically.

Her scepticalness made her question everything she heard.

Her scepticality made her question everything she heard.

He is a sceptic when it comes to new technology.

There is a lot of scepticism surrounding the new government policies.

The sceptics believe that climate change is a hoax.

There are many scepticisms surrounding the new scientific discovery.

She scepticized his claims.

I often scepticize new ideas before fully embracing them.