have met someone before.
I met you.
逢ったことが無い
期せずして逢った
to meet with a disaster―come to harm―come to grief
よく遭遇する
一度ならず逢った
to encounter the enemy―fall in with the enemy
逢いたかった
to meet someone
I had a bad bargain.
ひどい目に逢った
I had a woeful experience
I had a woeful experience―a hard time of it.
(相撲なら)to be matched against each other―meet one on the ring―(役者なら)―appear in the same play
逢ったことが幾度もある
to meet with a misfortune―fall upon evil days―light upon bad times―A misfortune happens to one―A misfortune befalls one―A shadow falls on one―Fortune frowns on one