Indisputably antonyms

What is the opposite word for Indisputably?

• doubtfully

  apparently, exactly
• indefinite

  certainly
• questionably

  apparently, certainly
• improbably

  apparently, certainly
• unlikely

  apparently, certainly
• dubiously

  without a doubt
• indefinitely

  without a doubt
• doubted

  certainly
• dubious
• questionable
• uncertain
• doubtedly

  without a doubt
• difficultly

  without a doubt
• dubitably

  without a doubt
• obscurely

  apparently
• vaguely
• mistakably
• loosely

  exactly
• figuratively

  exactly
• debatably