hidingly

In a hiding, clandestine, or secretive manner.

Japanese Meaning

隠密に / 内密に / ひそかに / 秘密裏に

He hidingly reached into the drawer and took the old letter without anyone noticing.

彼はひそかに引き出しに手を伸ばし、誰にも気づかれないように古い手紙を取った。

Sense（1）

In a hiding, clandestine, or secretive manner.

But the very fact that you are doing it hidingly means it is not all right.

more hidingly

（ comparative ）

most hidingly

（ superlative ）