noun, na-adjective, noun which may take the genitive case particle 'no'
utmost purity; purest and highest
A formal, somewhat literary compound emphasizing absolute purity and supreme quality. Often used in philosophical, artistic, or spiritual contexts.
His art has reached a state of utmost purity and sublimity.
This tea has a flavor of the purest and highest quality.
A compound of 至純 (shijun, 'purest') and 至高 (shikō, 'highest'). The exact historical derivation is uncertain, but it follows a common pattern of combining two intensifying kanji compounds to express an ultimate quality.