( 谦 ) presumptuous ⇒ 冒昧打断您一下。 Màomèi dǎduàn nín yīxià. → May I interrupt you a moment?
愚昧
ignorant
昧心
against one's principles ⇒ 他从不说昧心话。 Tā cóng bù shuō mèixīn huà. → He never says anything that goes against his principles. ⇒ 他从不赚昧心钱。 Tā cóng bù zhuàn mèixīn qián. → He'll never make money dishonestly.
暧昧
( 含糊 ) vague
蒙昧
( 未开化 ) uncivilized
素昧平生
never met ⇒ 一位素昧平生的女孩子给她买了火车票。 Yī wèi sù mèi píngshēng de nǚháizi gěi tā mǎile huǒchēpiào. → A girl she had never met before bought her a train ticket.