Synonyms and related words :
KO, Lethe, abandon, absentmindedness, anonymity, blackness, blackout, blank mind, blankmindedness, blankness, calm of mind, careless abandon, carelessness, casualness, catalepsy, catatonia, catatony, coma, cursoriness, darkness, decay of memory, disregard, disregardfulness, easiness, emptiness of mind, empty-headedness, extinction, faint, fallow mind, fatuity, foolishness, forgetfulness, forgetting, forgiveness, grayout, hastiness, hazy recollection, heedlessness, inanity, inconsiderateness, inconsideration, indifference, insensibility, insensibleness, insouciance, kayo, knockout, lack of foresight, laziness, lethe, limbo, lipothymia, lipothymy, mental blankness, nepenthe, nihility, nirvana, nirvana principle, nothingness, obliteration, obliviousness, obscurity, offhandedness, passivity, perfunctoriness, quietism, recklessness, regardlessness, semiconsciousness, senselessness, short memory, sleep, sprezzatura, stupor, swoon, syncope, tabula rasa, tactlessness, thoughtfreeness, thoughtlessness, tranquillity, unawareness, unconsciousness, unheedfulness, unintelligence, unmindfulness, unpreparedness, unreadiness, unsolicitousness, unsolicitude, unthinkingness, vacancy, vacuity, void, waters of oblivion