痴呆 (chī dāi) — stupid, foolish; mentally impaired, demented (due to senility or illness)

Definition

痴呆 (chīdāi) has two distinct senses: calling someone 'foolish' (colloquial insult, stronger than 傻/笨), and the medical/clinical sense 'demented' (e.g. senile dementia). Pick by context — everyday insult vs. medical condition.

adjective
stupidfoolishmentally impaireddemented (due to senility or illness)

Examples

  • 痴呆
    Bié nà me chī dāi, zǐ xì xiǎng xiǎng zài shuō.
    Don't be so stupid; think it over carefully before speaking.
  • 痴呆
    Tā lǎo le yǐ hòu biàn de yǒu diǎn chī dāi.
    He became a bit senile after getting old.
  • 痴呆
    Nǐ wèn zhè zhǒng chī dāi de wèn tí, shuí huì huí dá?
    Asking such a stupid question — who would answer it?

Browse more HSK 7-9 words or search the full 43,000-word dictionary.

痴呆 (chī dāi) — stupid, foolish; mentally impaired, demented (d… | TongTong Chinese Dictionary