sardonicism
/sɑrˈdɑnɪsɪzəm/
noun
- A mocking or cynical attitude or remark, often expressed in a bitter or scornful way.
- His sardonicism made it hard to tell if he was joking or serious.
- She responded with sardonicism, saying she was 'thrilled' to work late again.
- The critic's review was full of sardonicism, dismissing the film as a waste of time.