laxness

failure to take the care that a cautious person usually takes the mountain climber's uncharacteristic laxness almost caused an accident Synonyms carelessness, dereliction, heedlessness, incaution, incautiousness, negligence, neglectfulness, remissness, slacknessRelated Words foolhardiness, rashness, recklessness, wildness; neglect, omission; delinquency, irresponsibility, irresponsibleness, malfeasance, malpractice, misconduct; misdirection, mishandling, mismanagement; forgetfulness, inadvertence, inadvertency, inattention, inattentiveness, obliviousness, shortsightedness, unwarinessNear Antonyms alertness, attention, attentiveness, awareness; circumspection, observance, vigilance, watchfulness; responsibility, responsiblenessAntonyms care, carefulness, caution, cautiousness, heedfulness