deep inside

at heart, deep down

Japanese Meaning

心の奥底に、本質的に

She appeared calm, but deep inside she was trembling with excitement.

彼女は落ち着いて見えたが、心の奥底では興奮で震えていた。

Sense（1）

at heart, deep down

But deep inside he knew the truth was he longed for one last great adventure.

more deep inside

（ comparative ）

most deep inside

（ superlative ）