I. verb
to pass over without giving due attention
neglected his family for the sake of his mistress
Synonyms: blink (at or away), discount, disregard, elide, fail, forget, ignore, miss, omit, overleap, overlook, overpass, pass, pass by, pass over, pretermit, slight, slough over, slur (over)
Related Word: brush (off or aside), disdain, dismiss, reject, scant, scorn, shrug away, shrug off
Idioms: pay no attention to, pay no heed ( or mind), think little of
Contrasted words: appreciate, prize, treasure, value; cultivate, foster, nurse, nurture
Antonyms: cherish
II. noun
Synonyms: failure 1, default, delinquency, dereliction, oversight