Tiếng Việt · Slang Candidate

tự nhiên cái nết

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Proposed by a contributor, not yet supported by evidence.

Meaning · English

A sarcastic Southern jab at someone's sudden bad attitude — "where did THAT behavior come from?"

Literally: suddenly, that temperament

Where it’s used: More common Miền Nam · Southern Vietnam

Examples

Đang vui vẻ tự nhiên cái nết giận ngang, ai hiểu nổi.Everything was fine and then that attitude came out of nowhere — who can keep up?

Editorial example (batch 046)

Sources & notes

Discovered via slangviet.com (headword reference only; definition and example written independently for Idiomer). Retrieved 2026-08-05. Reference page: slangviet.com/phrases/tu-nhien-cai-net.

Topics: Gen Z slang

Common questions

What does “tự nhiên cái nết” mean?

A sarcastic Southern jab at someone's sudden bad attitude — "where did THAT behavior come from?" Literally: suddenly, that temperament

Is “tự nhiên cái nết” formal or informal?

tự nhiên cái nết is generally informal.

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