- of, relating to, or characteristic of an idiot.
- senselessly foolish or stupid: an idiotic remark.
- of or resembling an idiot; foolish; senseless
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.