He decided to disregard Bill's advice.
"Disregard what I just said, I'm tired and not thinking straight."
His disregard for the road rules got him banned from driving.Do not disregard the law.
I have a heinous disregard for the value of education.
A Teenage Boy Threw A Rock At A Neighbor's Window
A new badge for assault troopers would disregard them further.
"Disregard the errors" I will now disregard everything, because I'm angry.
"Dis-" is a prefix, typically meaning "not" or "opposite of." "Disregard" is a word formed by adding the prefix "dis-" to the base word "regard." A suffix is a group of letters attached to the end of a word to change its meaning or function, which is not the case with "dis-" in this context.
The arrant thief robbed the homeowners. He is an arrant fool!
The investigation was not limited to the immediate, with a disregard of the collateral evidence.
That is the correct spelling of "disregarded" (ignored, disobeyed).
The word disregard means to ignore something or someone. There are many synonyms for that word, including ignore, dismiss, brush aside, discount and brush off.
To be cavalier is to show disregard. An example sentence would be: His cavalier attitude was very bothersome to everyone.