Synonyms for Questionable

Synonyms starting with letter O

• open to doubt

  controversial, doubtful
• obscure

  doubtful, ambiguous
• open to question

  controversial, doubtful
• odd

  suspicious
• open

  debatable, opinion
• opprobrious

  dubious
• open to discussion
• offensive

  dubious
• outrageous
• occult

  doubtful
• oracular

  doubtful
• obnoxious

  dubious
• open to debate
• outlandish
• off-color
• out of the ordinary
• opaque
• oblique
• on thin ice
• oddball
• off the wall
• outre
• odious
• obscene
• outside chance
• obvious
• overt
• out of the question
• out of line
• ostensible
• open discussion
• objectionable
• open to suspicion
• off-colour
• off color
• off colour
• opens
• out-of-line
• obscured
• ordinary