怱そう忙ぼう

noun, noun which may take the genitive case particle 'no'

busy; hectic

Formal or literary term for being busy or pressed with affairs. Rare in everyday speech; encountered mainly in older or elevated writing.

• 怱そう忙ぼうのため、返へん信しんが遅おくれました。

  Due to being busy, my reply was delayed.

• 怱そう忙ぼうの折おり、お時じ間かんをいただき恐きょう縮しゅくです。

  I apologize for taking your time when you are so busy.