Quick definitions from WordNet (irony)
▸ noun: incongruity between what might be expected and what actually occurs ("The irony of Ireland's copying the nation she most hated")
▸ noun: a trope that involves incongruity between what is expected and what occurs
▸ noun: witty language used to convey insults or scorn ("Irony is wasted on the stupid")
▸ Also see irony
▸ noun: incongruity between what might be expected and what actually occurs ("The irony of Ireland's copying the nation she most hated")
▸ noun: a trope that involves incongruity between what is expected and what occurs
▸ noun: witty language used to convey insults or scorn ("Irony is wasted on the stupid")
▸ Also see irony