やっかいなことに
厄介なことに
the trouble is ...; to make matters worse; troublingly
N3Expression
Expression
the trouble is ...•to make matters worse•troublingly
Example Sentences
さらに厄介なことに、彼は近所の人に迷惑をかけていることにさえ気づいていない。
To make matters worse, he isn't even conscious of annoying his neighbors.