ignore
be oblivious to, blank (slang) bury one's head in the sand, cold-shoulder, cut (informal) discount, disregard, give the cold shoulder to, neglect, overlook, pass over, pay no attention to, reject, send (someone) to Coventry, shut one's eyes to, take no notice of, turn a blind eye to, turn a deaf ear to, turn one's back on
Antonyms
acknowledge, heed, note, pay attention to, recognize, regard