一无所知 (yī wú suǒ zhī)

Character breakdown

• 一 (yī) · 1 strokes

  A single horizontal stroke, representing the number one.

• 无 (mó) · 4 strokes

  Pictograph of a person dancing, with ox tails or bird feathers hanging from his arms, to pray for rain. Original form of 舞 (dance). The current form is a phonetic loan. The simplified character 无 was…

• 所 (suǒ) · 8 strokes

  Origin unclear. 戶 represents the sound.

• 知 (zhī) · 8 strokes

  Phonosemantic compound. 口 represents the meaning and 矢 represents the sound.

Usage

他对这件事一无所知。

not knowing anything at all (idiom); completely ignorant; without an inkling

tā duì zhè jiàn shì yī wú suǒ zhī 。