Usage patterns 〈 事こと 〉 が 不ふ 可か 解かい だ ~ is incomprehensible/mysterious
His behavior is incomprehensible.
不ふ 可か 解かい な 〈 事こと 〉 a mysterious/inexplicable ~
This is a mysterious incident.
〈 事こと 〉 を 不ふ 可か 解かい に 思おも う to find ~ puzzling/inexplicable
She found the reply puzzling.
Related words 不思議 conveys a sense of wonder or strangeness, while 不可解 stresses that something defies logical understanding or explanation.
謎 is a noun meaning 'riddle' or 'mystery', whereas 不可解 is an adjectival noun that describes something as inexplicable.
難解 describes something hard to understand due to complexity or difficulty, while 不可解 implies it cannot be understood or explained at all, often with puzzlement.
不可解 is a formal word for something logically impossible to understand, while 意味不明 is a more colloquial, broadly applicable way to say something makes no sense.
Don't confuse with 不可欠 shares the 不可 prefix with 不可解 but means 'indispensable', a completely unrelated meaning to 不可解 's 'incomprehensible'.
不可能 also starts with 不可 but means 'impossible', which learners may confuse with 不可解 's meaning of 'incomprehensible'.
不可解 (incomprehensible) shares the 不可 prefix with 不可避 (inevitable) but describes something baffling, not something that can't be avoided.
Etymology Compound of 不 (fu, 'not') + 可 (ka, 'possible') + 解 (kai, 'understand, solve'), literally 'not possible to understand'. The word follows a standard Sino-Japanese pattern for forming negative-potential adjectives.
Report an issue with this page
Copyright © 2026 Kotomora. All Rights Reserved.
