idiotic
adj.
1713, from Late Latin idioticus "uneducated, ignorant," in classical Latin, "of an ordinary person," from Greek idiotikos "unprofessional, unskilled; not done by rules of art, unprofessional," from idiotes (see idiot). Idiotical is from 1640s. Related: Idiotically.
〔蒋〕[idio=peculiar，own，private，proper特殊的，个人的，专有的，-ic形容词后缀，…的] 白痴的，愚蠢的