Related Clues:

• ''Certainly!''
• Skeptical acknowledgement
• 'Not to worry'
• Unfailing
• Free from doubt
• 'That'd be fine'
• 'Why not?!'
• 'You got it'
• Comforting words
• Doubtless
• 'No prob'
• "Without a doubt!"
• "Why not?"
• "Absolutely!"
• Absolutely certain