Synonyms for Crazy

Synonyms starting with letter I

• insane

  foolish, mentally strange, unrealistic
• idiotic

  mentally strange, unrealistic, insane
• inane

  idiotic, ridiculous, asinine
• irrational

  unreasonable, senseless, raving
• imbecilic

  idiotic, ability
• impracticable

  unrealistic, ridiculous, unreasonable
• imprudent

  ridiculous, unrealistic, idiotic
• ill-conceived

  idiotic, ridiculous, unrealistic
• imbecile

  stupid
• irresponsible

  ridiculous
• incredible

  unbelievable
• impractical
• illogical

  unreasonable
• infatuated

  fanatical
• implausible

  unbelievable
• incongruous

  peculiar
• inappropriate
• ill-advised
• idiosyncratic
• impossible
• infatuated with

  very keen on
• ill-considered
• injudicious
• irregular
• invalid
• inconsistent
• in love
• inept
• insignificant

  snooty
• infirm

  characteristic
• impaired

  characteristic
• improbable
• impassioned
• infuriated
• incoherent
• ignorant
• incensed
• immature
• impetuous
• improvident