Antonym of NOVEL

Answer: Option D

Novel : a fictitious prose narrative of book length, typically representing character and action with some degree of realism.
Formal : done in accordance with convention or etiquette; suitable for or constituting an official or important occasion.
Ancient : belonging to the very distant past and no longer in existence.
Customary : according to the customs or usual practices associated with a particular society, place, or set of circumstances.
Traditional : existing in or as part of a tradition; long-established.

Antonym of Novel is Traditional