正しょう真しん

noun which may take the genitive case particle 'no'

true; authentic; genuine

Almost exclusively used in the compound 正真正銘 (しょうしんしょうめい), meaning 'genuine' or 'the real thing'. Rarely used independently in modern Japanese.

See also: 正真正銘

• これは正しょう真しん正しょう銘めいのダイヤモンドだ。