incest
0 synonyms and 0 antonyms for incest, grouped by meaning and by how common each one is.
Noun — Sexual relations between close relatives, which is widely considered taboo and is illegal in most places.
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Etymology
A learned borrowing from Latin incestus, "unchaste, impure." It replaced the Old English term mǣghǣmed, literally "relative-sex."
Full origin of incest →