不攻自破

bùgōng-zìpò
idiom #43,497

Meanings

  1. 1 to collapse without being attacked
  2. 2 to fall apart on its own
  3. 3 (of a rumor or argument) to be discredited by itself

Examples

HSK 7-9
Shìshí yì chū, yáoyán bùgōng-zìpò.
Once the facts came out, the rumor collapsed on its own.
HSK 7-9
Tā de lùndiǎn lòudòng-bǎichū, bùgōng-zìpò.
His argument was riddled with holes and fell apart by itself.

Tips

history
Attested in the Jin-dynasty 《晋记》 as 不攻而自败 and in Tang writings as 不攻而自破. The image is a fort so weak it crumbles without a siege, extended to any claim whose weakness is self-evident.
usage
Subjects are usually abstract: 谣言 (rumors), 论点 (arguments), 谎言 (lies). Typical pattern: [evidence] 一出,[claim] 不攻自破. The positive twin: 牢不可破 (unshakeably firm).

Stroke Order

gōng