Biantai (变态)

Scope first: biantai (变态) is an all-purpose insult in everyday Chinese — “pervert,” “creep.” This entry is about what happens when it is aimed at LGBTQ+ people, because there the word carries a very specific history.

As a sexological term, biantai entered Chinese in the early twentieth century via Japanese translations of Western sexology — the same characters as the Japanese hentai, from hentai seiyoku, “perverse sexual desire.” That generation of medicine filed every non-mainstream sexuality and gender under “pathology,” and homosexuality wore the “sexual perversion” label for decades. When someone reaches for biantai today, what comes out is an echo of that obsolete science.

Medicine itself moved on long ago: the World Health Organization removed homosexuality from the International Classification of Diseases in 1990; China’s own psychiatric classification, CCMD-3, removed homosexuality as a category from its classification of mental disorders in 2001; and ICD-11 (adopted 2019, in effect 2022) moved gender incongruence out of the mental disorders chapter entirely. In other words, calling sexual minorities biantai is not just cruel — it is expired science.

Register note: aimed at LGBTQ+ people, the word has no defensible register — it insults and pathologizes in a single move. Neutral wording: xingshaoshu (sexual and gender minorities) or LGBTQ+.

Common misuse: converting “I find this hard to understand” into “this is perverted.” Not understanding someone is not a diagnosis — see Is it an illness?.