ばかばかしくありませんでした
馬鹿馬鹿しくありませんでした
bakabakashikuarimasendeshita

i-Adjective

The polite, past negative form of ばかばかしい

1. Was not foolish.; Was not silly.; Was not absurd.

Past/Perfective
Negative
Polite
Formal Register
Usually Written in Kana