jpn: 口が堅い

Information
has URI	http://lexvo.org/id/term/jpn/%E5%8F%A3%E3%81%8C%E5%A0%85%E3%81%84
character	Character U+53E3
character	Character U+5805

Meaning
means	(adjective) inclined to secrecy or reticence about divulging information; "although they knew her whereabouts her friends kept close about it" closemouthed, close, secretive, closelipped, tightlipped