Kyūjitai form of 発情

sadness; sorrow; grief

(Internet slang, derogatory) someone who is incapable of utilizing the plethora of information available online

(psychology, psychiatry) affect (subjective feeling experienced in response to a thought or other stimulus)

(historical, Taiwan under Japanese rule) sentiment among the aboriginals

Expressing one's exclamation.

放火魔: (firefighting, criminology, psychology) pyromaniac

放火犯: (law, firefighting) arsonist

途方もない: absurd, extraordinary, unbelievable; immense, prodigious, enormous

途方: way, reason