Related Clues:

• Incorruptible
• "No lie!"
• 'For real!'
• 'No lie'
• "No, really!"
• Insistent affirmation
• Truthful
• 'Honest to goodness!'
• Unbribable
• ''That's the truth!''
• 'No fooling!'
• Beyond reproach
• ''I'm not kidding!''
• Without guile
• ''No fooling!''