turndown (n.)

• abnegation
• contradiction
• declension
• declination
• denial
• deprivation
• disagreement
• disclaimer
• disobedience
• dissent
• nay
• negation
• negative
• nix
• no
• nonacceptance
• noncompliance
• nonobservance
• recantation
• refusal
• rejection
• repudiation
• retention
• unwillingness
• withholding