scoffer
/ˈsɒfər/Definitions
1. noun
A person who habitually mocks or ridicules others, often in a scornful or contemptuous manner.
“The comedian’s sarcastic jokes made him a scoffer among his peers.”
2. verb
To mock or ridicule someone or something in a scornful or contemptuous manner.
“She scoffed at the idea of the new business venture failing.”