| invalidation(noun, negation, confutation) |
| invalidity(noun, absurdity, inconsistency, irrationality) |
| irrationality(noun, absurdity, inconsistency) |
| nay(noun, rebuff, disapproval, rejection, veto) |
| negative(noun, rebuff, disapproval, rejection, veto) |
| nix(noun, negative, rebuff, disapproval, rejection) |
| noncompliance |
| objection(noun, opposition) |
| obstruction(noun, opposition) |
| opposing |
| opposure(split, division, opposition, reverse, contrast) |
| oppugnancy(noun, split, division, opposition, separation) |
| prohibition(noun, disapproval, rejection, veto, denial) |
| refutal(noun, disapproval, rejection, veto, repudiation) |
| rejoinder(noun, confutation) |
| repulse(noun, negative, disapproval, rejection, veto) |
| retractation(noun, retraction) |
| reverse(noun, opposition, difference, contrary, denial) |
| revocation(noun, recall, withdrawal, denial, repudiation) |
| turndown(noun, negative, disapproval, rejection, veto) |