irony

noun

1.
witty language used to convey insults or scorn
gird heaning caustic remark sarcasm satire
Derived from:
ironic ironical ironist
2.
incongruity between what might be expected and what actually occurs
Derived from:
ironic ironical
3.
a trope that involves incongruity between what is expected and what occurs
Derived from:
ironic ironical