- 卖獃 màidāi to gaze idlyto stare blankly or gaze into space; to play the fool or pretend to be stupid; to loiter around aimlessly
- 卖獃儿 màidāir to gaze idlyto stare blankly or gaze into space without thinking
- 发獃 fādāi to stare blankly(variant form) to be lost in thought, to daze off, or to look with a blank expression
- 獃瓜 dāiguā idiot(variant form) fool or simpleton
- 看獃 kàndāi to gape atto be transfixed or struck dumb by what one sees; to stare blankly in amazement
- 老年痴呆 lǎoniánchīdāi senile dementiasenile dementia; Alzheimer's disease