Idiotic

//ˌɪdiˈɑtɪk// adj

Definitions

Adjective
  1. 1
    Pertaining to or resembling an idiot; characterised with behaviour resembling idiocy.
  2. 2
    Having the quality of idiocy; very foolish

    "Everyone else shifted uncomfortably as this guy continued his derisive laughter and proclaimed my quest the most idiotic thing he'd heard in his life."

Adjective
  1. 1
    having a mental age of three to seven years wordnet
  2. 2
    insanely irresponsible wordnet
  3. 3
    so unreasonable as to invite derision wordnet

Etymology

From idiot + -ic.

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