呆头呆脑 Traditional form: 呆頭呆腦 Pinyin (reading): dāitóudāinǎo Definitions: oafish; dull-witted Characters: 呆 - dull, simple, stupid 头 - head; chief, boss; first, top 呆 - dull, simple, stupid 脑 - brain Traditional characters: 呆 - dull, simple, stupid 頭 - head; chief, boss; first, top 呆 - dull, simple, stupid 腦 - brain