noun
evil destiny; bad karma; unfortunate fate
Buddhist-influenced term for a negative karmic connection or ill-fated relationship, often implying a bond that brings suffering.
彼との悪因縁は、前世からのものかもしれない。
This bad karma with him might be from a previous life.
あの二人は悪因縁で結ばれているようだ。
Those two seem to be bound by an unfortunate fate.
宿命 refers to a predetermined destiny or fate in general, without the karmic or relational nuance of 悪因縁.
Compound of 悪 (aku, 'evil') and 因縁 (innen, 'karmic connection, fate'). The term originates from Buddhist concepts of causality and karmic bonds.