フカカイ
Meanings
Noun
1. 理解・解決できない様子。
Pitch accent
カイ
Composed of
① いけないこと、よくないこと、可と認めないこと。② 試験の成績で、不合格。四段階評価で、優、良、可に次ぐもの。
solution (of an equation, inequality, etc.); root (e.g. of a polynomial); solution (to a given problem); answer; explanation; interpretation
Examples (3 in total)
The disappearances in the Bermuda Triangle are inexplicable.
Do you remember that baffling murder case?
The doctor is trying to solve many of the riddles of cancer.