C1to not give enough care or attention to people or things that are yourresponsibility: to neglect yourappearance/the gardenHe neglects that poordog - he never takes him for walks or gives him any attention.I'm afraid I've rather neglected my studies this week.Neglecting and ignoringNot paying attentionTreating as unimportantTreating people or animals badlyInsults and abuseUnkind, cruel and unfeelingViolent or aggressiveneglect to do sthC2to not do something, often because you forget: I'd neglected to give him the name of the hotel where I'd be staying.He neglected to mention the fact that we could losemoney on the deal.Failing and doing badly