noun, noun or participle which takes 'suru', intransitive verb
change of opinion; changing one's view
Refers to a person altering their previously held opinion or stance. Can be used as a noun or with する to mean 'to change one's opinion'.
彼は突然変説して、反対派に回った。
He suddenly changed his opinion and went over to the opposition.
その政治家の変
The politician's change of opinion surprised many supporters.