Timonism

noun2

1. •
   A form of bitter misanthropy, a despair leading to hatred or contemptuous rejection of mankind, like Timon of Athens.

   • This most cruel betrayal led him to Timonism.
2. •
   A bitter or cynical utterance or behavior, in the manner of Timon of Athens.

   • Pay no attention to his Timonisms; it's a pose.