1. Perverseness.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• deversity,
• perverty,
• perverst,
• seversity,
• perversly,
• oerversity,
• lerversity,
• -erversity,
• pereversity,
• perveersity,
• purversity,
• pervarsity,
• perversaty,
• perveersive,
• perversiv,
• perverssive,
• perversivve,
• pervercive,
• enveracity,
• perversitie

• perverseness,
• pervert,
• perfervid,
• perversive,
• perversion,
• perversely,
• perverted,
• perverse.

The adjective form of the word "perversity" is "perverse".

The plural of the "perversity" can be the "perversities".

The singular of the "perversity" can be the "perversity".