matatapu
1. (modifier) confidential, private.
Nōku te heahea ki te pōhēhē ka noho matatapu tāku i whāki atu ai ki a ia, mōhio rawa ake, kua puta kē ki te ao! (PK 2008:429). / I was stupid in thinking that what I revealed to her would remain confidential, I now know that it's been revealed to the world!
2. (noun) confidentiality.
Kua hikina e te Kōti te matatapu i runga i te ingoa o te rōia me tana tinihanga. / The Court has lifted the confidentiality on the name of the lawyer and his dishonesty.