破坏无遗

• 石(stone; rock)RADICAL
• 皮(skin; shed)PHONO-SEMANTIC

Breaking something open is like using a stone to smash away the entire outer shell.

• 土(earth; soil; land)RADICAL
• 不(not; negation)PHONETIC

Earth covered, denied, damaged and crumbles into fragments.

• 一(one; initial)ASSOCIATIVE
• 尢(disabled person; insufficient)ASSOCIATIVE

From the beginning there was a shortage, so 無 means 'nothing at all'.