overweening UK /əʊvəˈwiːnɪŋ/US /oʊvɚˈwinɪŋ/adjective 2noun 1forms 3 adjective2 •Unduly confident; (sometimes also) arrogant.She wins one modeling contest in Montana and suddenly she’s overweening. •Exaggerated, excessive. noun1 •(no longer used) An excessively high opinion of oneself or one’s abilities; presumption, arrogance.Let us suppresse this over-weening [translating cuider], the first foundation of the tyrannie of the wicked spirit[…]. — 1603 formsoverweenings · more overweening · most overweening