Neglect

Abandon

Synonyms: Fail to look after, fail to provide for, abandon, uncared for, abandoned, run down, dilapidated, ramshackle, unmaintained, uncultivated, wild, weedgrown, fail to care for, leave alone, forsake, mistreated, forsaken, derelict, tumbledown, untended, overgrown, unweeded, and rumpty.

Be lax about

Synonyms: Pay little/no attention to, not attend to, be lax about, lose sight of, shirk, disregard, pay no attention to, pay no heed to, set aside, turn a deaf ear to, disdain, pass by, slight, rebuff, disregarded, overlooked, unrecognized, unsung, undervalued, passed over, out in the cold, let slide, be remiss about, leave undone, skimp on, skip, ignore, take no notice of, discount, overlook, throw to the winds, pass over, scorn, spurn, turn one's back on, forgotten, ignored, unnoticed, underestimated, unappreciated, and spurned.

Deterioration

Synonyms: Disrepair, deterioration, disuse, desuetude, dilapidation, shabbiness, and abandonment.

Negligence

Synonyms: Negligence, dereliction of duty, remissness, carelessness, lack of concern, laxity, slackness, culpa, failure to take proper care, failure to take proper action, neglectfulness, heedlessness, unconcern, laxness, irresponsibility, and delinquency.

Example Sentences

Don't neglect your health and well-being.

They faced consequences due to neglect.

She showed neglect towards her responsibilities.

Neglect can lead to serious problems.