singularist

from The Collaborative International Dictionary of English v.0.48

Singularist \Sin"gu*lar*ist\ (s[i^][ng]"g[-u]*l[~e]r*[i^]st), n.
   One who affects singularity. [Obs.]
   [1913 Webster]

         A clownish singularist, or nonconformist to ordinary
         usage.                                   --Borrow.
   [1913 Webster]