irony
rhetorical device, literary technique, or situation in which there is an incongruity between the literal and the implied meaning
sarcasm
sharp, bitter, or cutting expression or remark; a bitter gibe or taunt
Socratic irony
a feature of the Socratic method of questioning, in which ignorance is affected in pretending to solicit information, only to then point out the unforeseen consequences and glaring contradictions educed thereby