口の堅い

くちのかたい

Also written 口のかたい

Meanings

1. Expression, い-adjective tight-lipped; able to keep a secret See also: 口が堅い (くちがかたい).

Kanji

• 口 mouth. Read as くち.
• 堅 firm. Read as かたい.

Jinuma: Japanese Dictionary · Word lists