痴呆

chīdāi

HSK 7

痴呆 — chīdāi

1. stupid; dull (pejorative)

   别在他面前说那些话，他听了会觉得你很痴呆。 bié zài tā miànqián shuō nàxiē huà tā tīng le huì juéde nǐ hěn chīdāi — Don't say those things in front of him; he'll think you're stupid.

2. (medicine) dementia; loss of cognitive function

   老年痴呆是一种常见的神经退行性疾病。 lǎoniánchīdāi shì yīzhǒng chángjiàn de shénjīng tuìxíngxìng jíbìng — Senile dementia is a common neurodegenerative disease.