(かっこ)

かっこ
taru-adjective
firm, unwavering, steadfast
formalwrittendescriptive
1. firm, unwavering, steadfast
Solidly established and not easily shaken or changed. Used to describe beliefs, positions, determination, or status that are rock-solid.
確固(かっこ)たる信念(しんねん)()
To hold a firm belief.
He faced the difficulties with unwavering determination.
It took many years to build a firmly established position.

Usage

Almost always used in the forms 確固(かっこ)たる (before nouns) or 確固(かっこ)として (adverbially). This is a たる-adjective and does not take な. Very formal and literary in tone.

Common collocations