advertent UK /ədˈvɜːtn̩t/US /ədˈvɝtn̩t/ adjective2 •Not inadvertent; intentional.There is such thing as advertent negligence in which the harm is foreseen as possible or probable. — 1963 •Attentive.Is he rich, prosperous, great? yet he continues safe, because he continues humble, watchful, advertent, lest he should be deceived and transported — 1828 formsmore advertent · most advertent