Ma'anar ƙamus na kalmar "rashin rai" yana cikin yanayin rashin rai ko ruhi, rashin zurfin tunani ko azanci, ko rashin iya ji na ɗan adam. Ana amfani da shi sau da yawa don kwatanta wani abu ko wani a matsayin sanyi, mara zuciya, ko rashin tausayi. Misali, ana iya siffanta ofishin kamfani a matsayin “marasa rai,” ma’ana yana da inganci amma ba shi da ɗumi ko ɗan adam.
