THESAURUS
turndown
abnegation, contradiction, declension, declination, declinature, declining, denial, deprivation, disagreement, disallowance, disclaimer, disclamation, disobedience, dissent, holding back, nay, negation, negative, negative answer, nix, no, nonacceptance, noncompliance, nonconsent, nonobservance, recantation, refusal, rejection, repudiation, retention, thumbs-down, unwillingness, withholding