隙大墙坏 is an idiom

隙大墙坏xì dà qiáng huài

墙缝大了就要倒。比喻错误不及时纠正，就会造成祸害。

Origin 《商君书·修权》：“蠹众而木折，隙大而墙坏。”

Word breakdown for “隙大墙坏”: Open in Reader →

1.crack2.crevice3.gap or interval4.loophole+2 more +3 more

大HSK 1

1.big; large; great2.older (than another person)3.eldest (as in 大姐[dà jiě])4.greatly; freely; fully+2 more +3 more

see 大夫[dài fu]

墙墻HSK 2

variant of 墙[qiáng]

墙牆HSK 2

1.wall (classifier: 面 [miàn], 堵 [dǔ])2.(slang) to block (a website) (usu. in the passive: 被墙[bèi qiáng])

坏壞HSK 1

1.bad2.spoiled3.broken4.to break down+1 more +2 more