Deliberately ignored or paid no attention to something; treated something as unimportant.
From dis- (prefix meaning 'away') and regard (from Old French regarder meaning 'to look at'). Formed in early Modern English to mean 'to look away from' or ignore. The prefix inverts the action of regard.
Disregard is the perfect word for what happens when we actively look away—the 'dis-' prefix doesn't just mean 'not,' it means looking in the opposite direction. That's why someone who disregards warnings often gets hurt; they're not just ignoring danger, they're pointedly turning their attention elsewhere.
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