意外 (yì wài)

Character breakdown

• 意 (Yì) · 13 strokes

  Thought (意) is the sound (音) that comes from the mind (心). (Oversimplified for brevity. The 音 component in this character has a complicated history.)

• 外 (wài) · 5 strokes

  Phonosemantic compound. 卜 represents the meaning and 月 represents the sound.