内ない柔じゅう外がい剛ごう

な

い

じゅ

う

が

い

ご

う

Meanings

1

tough exterior, soft heart

yojijukugo (four-character idiom)

Describes a person who appears stern or unyielding but is actually kind and gentle inside. A yojijukugo often used in character descriptions.

彼かれは内ない柔じゅう外がい剛ごうな人ひとで、厳きびしいことを言いっても本ほん当とうは優やさしい。
He is tough on the outside but soft at heart; even when he says harsh things, he is actually kind.