Webster's Revised Unabridged Dictionary · 1913

disregard

disregard , transitive verb

Not to regard; to pay no heed to; to omit to take notice of; to neglect to observe; to slight as unworthy of regard or notice; as, to disregard the admonitions of conscience.
Studious of good, man disregarded fame. — Blackmore

Disregard , noun

The act of disregarding, or the state of being disregarded; intentional neglect; omission of notice; want of attention; slight.
The disregard of experience. — Whewell