Synonyms for Controversial

Synonyms starting with letter O

• open to question

  at issue, contentious, disputed
• open

  debatable, opinion
• open to discussion

  at issue, contentious
• open to debate
• open to doubt
• objectionable
• offensive
• operative
• opinionated
• obscure
• occult
• oracular
• opens
• outspoken
• obstructive
• oppositional
• open discussion
• opposed
• ornery
• obdurate
• obstinate