ignorance declines decreases deteriorations reductions degenerations declinations degradations descents downgrades retrogressions declensions degeneracies fallings decays devaluations downfalls lapses relapses withdrawals ebbings stoppages halts retreats inactions cessations impasses pauses delays regressions retrogradations backslidings regresses dyings expirations expiries fadings reversions wanings witherings downturns diminishments extenuations attenuations depletions depreciations diminutions retrenchments abatements dips dives downtrends drops ebbs failings failures falls falloffs flops losses lowerings sags slides slips slopes slumps wanes demolitions destructions collapses eliminations crashings obliterations ruins undoings levelings causes reasons explanations arguments bases factors considerations foundations grounds groundworks impetuses incentives inspirations mothers origins proofs roots sources springs stimuli determinants intentions motivations motives