The word "looks in on" implies checking in or attending to something or someone, and its antonyms are words that indicate neglect or disregard. Some examples of antonyms for "looks in on" are abandon, desert, ignore, forget, neglect, overlook, and forsake. Abandoning or deserting someone or something conveys a sense of leaving it behind or giving up on it. Ignoring, forgetting, or neglecting something or someone implies a lack of attention or care. Overlooking also means disregarding, while forsaking suggests abandoning someone or something in a time of need. In general, these antonyms indicate a lack of concern or attention towards the object or subject at hand.