mind-boggling

IPA(Pronunciation)

Adjective

That causes the mind to boggle; that is beyond one's ability to understand or figure out.

Japanese Meaning

驚くほど信じがたく、理解が追いつかないほどの / 脳を圧倒するほど衝撃的で、考えがつかない

The mind-boggling complexity of the quantum computer's design left even experienced engineers speechless.

量子コンピュータの設計は度肝を抜くほどの複雑さで、経験豊富な技術者でさえ言葉を失った。

Sense（1）

That causes the mind to boggle; that is beyond one's ability to understand or figure out.

more mind-boggling

（ comparative ）

most mind-boggling

（ superlative ）