:id•i•ot \"i-de-et\ n [ME, fr. L idiota ignorant person, fr. Gk idiotes one in a private station, ignorant person, fr. idios one's own, private] 1  a mentally retarded person requiring complete custodial care 2  a foolish or stupid person — id•i•ot•ic \'i-de-"a-tik\ adj — id•i•ot•i•cal•ly \-ti-k(e-)le\ adv 
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