disregard

dis|re|gard /d'ɪsrɪg'ɑː^rd/ (disregards disregarding disregarded)
[VERB] V n
If you disregard something, you ignore it or do not take account of it.
He disregarded the advice of his executives...
[N-UNCOUNT]
Disregard is also a noun.
Whoever planted the bomb showed a total disregard for the safety of the public.