神出鬼没
shén chū guǐ mò
In real, traceable use. Part of the curated seed collection; community review is coming.
Traditional: 神出鬼沒
To come and go so quickly and unpredictably that nobody can tell where you will turn up next. First said of troops and their tactics, now of anyone or anything elusive.
Lúc ẩn lúc hiện như thần như quỷ: hành tung nhanh và khó lường, không ai đoán trước được. Vốn nói về cách dùng binh, nay dùng cho bất cứ ai hay vật gì khó nắm bắt.
Register: neutral
Examples
Editorial example (illustrative, not a corpus attestation) — awaiting a native-speaker check
Sources & notes
Hán-Việt bridge batch 062 (2026-11-13). Headword, Traditional form and pinyin checked against CC-CEDICT (CC BY-SA 4.0) source ↗ · Hán-Việt reading: Unihan kVietnamese source ↗ · Vietnamese cognate: Idiomer entry “thần xuất quỉ một” (than-xuat-qui-mot). Definition, literal gloss and example sentence are original; the example has not had a native-speaker check yet.
Equivalents & related
Common questions
What does “神出鬼没” mean?
To come and go so quickly and unpredictably that nobody can tell where you will turn up next. First said of troops and their tactics, now of anyone or anything elusive. Literally: emerge like a god, sink like a ghost
Is “神出鬼没” formal or informal?
神出鬼没 is generally neutral.