noun which may take the genitive case particle 'no', na-adjective, noun
determined; steadfast; unshakable
A formal, emphatic yojijukugo describing an unwavering attitude, resolve, or principle. Often used in written or rhetorical contexts.
He tackled the reforms with an unshakable conviction.
確固不抜な態度で交渉に臨む。
Approach the negotiations with a steadfast attitude.
Standard kanji spelling for this yojijukugo.
Variant spelling using 乎 instead of 固; less common but attested.
A yojijukugo composed of 確固 (firm, resolute) and 不抜 (unmovable, unshakable). The exact historical derivation is uncertain, but it follows classical Chinese patterns of four-character idioms expressing steadfastness.