verb

pay no attention to; ignore.

the body of evidence is too substantial to disregard

ignore,take no notice of,take no account of,pay no attention/heed to,refuse to acknowledge,discount,set aside,forget,overlook,dismiss,turn a blind eye to,turn a deaf ear to,shut one’s eyes to,pass over,gloss over,brush off/aside,shrug off,look the other way,laugh off,make light of,thumb one’s nose at,write off,blank

noun

the action or state of paying no attention to something.

blatant disregard for the law

indifference,non-observance,inattention,heedlessness,carelessness,neglect,lack of attention,lack of notice,lack of heed,negligence