expression
always contradicting what other people say
Idiomatic expression describing someone who habitually takes the opposite position, like saying 'river' when someone else says 'mountain'. Used for a contrarian or argumentative person.
彼は山と言えば川というタイプで、何でも反対する。
He's the type who always contradicts—if you say 'mountain,' he says 'river.'
会議で山と言えば川のような発言ばかりする。
In meetings, he only makes contradictory remarks, like saying 'river' when someone says 'mountain.'