/ˌself dəˈfēd iŋ/, /ˌself dēˈfēd iŋ/
It was a self-defeating policy that only served to alienate our allies.
それは味方を遠ざけるだけの逆効果な政策だった。
His self-defeating habits were ultimately the cause of his downfall.
彼の逆効果な習慣は結局彼の没落の原因となった。
Trying to please everyone is often self-defeating.
誰もを喜ばそうとすることは、しばしば逆効果になる。