Fair-weather friend
01
晴天の友, 都合の良い友達
a person who is only a friend during good times and is not supportive or reliable during difficult or challenging times
Disapproving
Idiom
例
Whenever I have a problem, John suddenly becomes unavailable. He 's proven himself to be a fair-weather friend time and again.
私が問題を抱えるたびに、ジョンは突然利用できなくなります。彼は何度も都合の良い友達であることを証明しています。
