Other forms: disregarded, disregarding, disregards
Disregard is paying no attention to something that matters. Complete disregard, disregard for safety, with total disregard.
The construction is disregard for or of. It is used seriously in inquiries and judgments: a reckless disregard for safety is a phrase with legal weight. As a verb it means to ignore deliberately: disregard the last email. Note that disregard implies the thing deserved attention, which is what separates it from simply not noticing; and that it is more formal than ignore.
1noundisregardPaying no attention to something that matters.
“The report found a complete disregard for the rules.”
2verbignoreTo ignore something deliberately.
“Please disregard my last email; I sent it by mistake.”
disregard is a failure to attend.
Proto-Indo-European
*wer-
Anglo-Norman
reguard
Middle English
regard
English
regard
English, today
disregard
From dis- + regard. Compare misregard. regard comes from Middle English regard, regarde, reguard, from Anglo-Norman reguard, from regarder, reguarder. Attested in Middle English starting around the mid 14th century. reward; compare also guard, ward, guardian, and so on.
Etymology from Wiktionary, CC BY-SA