Synonyms for Stupid

Synonyms starting with letter O

• obtuse

  irresponsible, unintelligent, ability
• oafish
• out to lunch

  irresponsible, crazy
• opaque
• oaf

  moron, dolt
• outrageous
• outlandish
• ordinary
• odd
• opinionated
• obstinate
• old
• out-of-date
• oft-repeated
• off-color
• ornate
• ostentatious
• out of it
• off the wall
• off-the-wall
• on treadmill
• old-fashioned
• old hat
• of no use
• out of the question
• out
• out cold
• out of date
• obscure
• ox
• oxen
• oblivious
• off one's head

  crazy
• off one's trolley

  crazy
• old fashioned
• off the air
• out of your mind
• off your trolley
• off your rocker
• off your head