(n.) Neglect or failure to observe or fulfill.

Laodiceanism abnegation absentmindedness carelessness contradiction contrariety declension declination declinature declining denial deprivation deviation disaccord disaccordance disagreement disallowance disclaimer disclamation disconformity disobedience disregard disregardfulness dissent distraction flightiness flippancy frivolousness giddiness heedlessness holding back inaccordance inadvertence inadvertency inattention inattentiveness incongruity inconsideration inconsistency incuriosity indevotion indevoutness indifference indifferentism inobservance levity lightmindedness lukewarm piety nay negation negative negative answer negligence nix no nonacceptance noncompliance nonconcurrence nonconformance nonconformism nonconformity nonconsent nonreligiousness obliviousness originality protest recalcitrance recantation recusance recusancy refractoriness refusal regardlessness rejection repudiation retention shallowness superficiality thoughtlessness thumbs-down turndown unalertness unawareness unconformity unconsciousness undevoutness undutifulness unheedfulness unintentiveness unmindfulness unobservance unreligiousness unwariness unwatchfulness unwillingness withholding