思いもよらなかった

never imagined

→ 思い
phrase Rare #26,410
never imagined An idiomatic expression used for something completely unexpected or beyond one's imagination. The present form is 思いもよらない, and the past form 思いもよらなかった means that something was not anticipated.
JA: 彼が突然引っ越すなんて、思いもよらなかった。
EN: I never imagined that he would suddenly move away.

思いもよらなかった

I never expected it.

— ロシアン・ブラザー (1997)

彼が私にディナーおごる言い張る事など思いもよらなかった

I never imagined he would insist on treating me to dinner.

思いもよらなかった

I never expected that.

彼を疑うなんて私には思いもよらなかった

It never occurred to me to doubt him.

そんな考えは私には思いもよらなかった

That thought never crossed my mind.