abnegation, abolishment, abolition, absence, annihilation, annulment, antagonism, argumentation, bucking, challenge, choking, choking off, clashing, conflict, contention, contradiction, contraposition, contravention, contraversion, controversy, counteraction, counterworking, crosscurrent, crossing, declension, declination, declinature, declining, denial, deprivation, deracination, difference, disaccord, disaccordance, disagreement, disallowance, disclaimer, disclamation, disconfirmation, discord, discordance, discordancy, discrepancy, disharmony, disobedience, disparity, disproof, disproval, disproving, dissension, dissent, dissidence, dissonance, disunion, disunity, divergence, diversity, elimination, emptiness, eradication, explosion, expose, exposure, extermination, extinction, extinguishment, extirpation, faction, gainsaying, head wind, holding back, impugnation, impugnment, inaccordance, inequality, invalidation, jarring, liquidation, nay, negative, negative answer, negativeness, negativity, nihility, nix, no, nonacceptance, nonbeing, noncompliance, nonconsent, nonentity, nonexistence, nonobservance, nonoccurrence, nonreality, nonsubsistence, not-being, nothingness, nullification, nullity, opposing, opposition, opposure, oppugnancy, oppugnation, purge, rebutment, rebuttal, recantation, redargution, reductio ad absurdum, refusal, rejection, repudiation, repugnance, resistance, retention, rooting out, silencing, snuffing out, standing against, stifling, strangulation, suffocation, suppression, thumbs-down, traversal, turndown, unactuality, undercurrent, unharmoniousness, unreality, unwillingness, uprooting, vacancy, vacuity, vacuum, variance, void, voiding, withholding