Senses
外亲/ 外親 female-line relatives
Relatives from the female line, including those related through one's mother, grandmother, wife, or married daughters and sisters.
外亲/ 外親 distaff relatives of the ruler
(literary) Relatives of the emperor or king by marriage.
外亲/ 外親 outwardly friendly
(literary) Outwardly close or friendly while remaining distant or distrustful at heart.