Definition of abnormalism in English:

abnormalism

Pronunciation /abˈnɔːməlɪz(ə)m/ /əbˈnɔːməlɪz(ə)m/

noun

rare
  • The condition of being, or tendency to be, abnormal.

Origin

Mid 19th century; earliest use found in New Church Repository & Monthly Review. From abnormal + -ism.