impure; adulterated; dishonest
Describes substances that are not pure, motives that are not sincere, or actions that are underhanded. Often used in compounds like 不純物 (impurity) or 不純異性交遊 (inappropriate heterosexual relationships).
This water contains too many impurities and cannot be drunk.
I think his motives are impure.
His kindness came from an ulterior motive.
I don't think her heart is impure.
不純 describes something impure or mixed with unwanted elements, the opposite of the unmixed purity expressed by 純一.
不純 means impure or mixed with ulterior motives, the direct opposite of 純's sense of genuine purity.
不純 describes something mixed or adulterated with impurities, the direct opposite of 無垢 in its sense of unmixed, pure material.
不純 describes impure or insincere motives, contrasting with 清らか's sense of moral purity and innocence.
illicit sexual relationship; improper relations with the opposite sex