QUESTION: What is Oxymoron?
ANSWER: Oxymoron is a figure of speech consisting generally of two apparently contradictory terms that express a startling paradox.
Example:  Why then, O brawling love! O loving hate!
O' anything of nothing first create
O' heavy lightness! Serious vanity.
[Shakespeare: Romeo And Juliet]
 She loathed the bright dishonour of his love. [Blake]