French Etymology From oublier (“to forget”) + -eux. Pronunciation IPA(key): /u.bli.jø/ Adjective oublieux (feminine oublieuse, masculine plural oublieux, feminine plural oublieuses) oblivious, forgetful (failing to remember) Derived terms oublieusement (“obliviously”) Further reading “oublieux”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012. Norman Etymology oublier (“to forget”) + -eux Adjective oublieux m (Jersey) forgetful Derived terms oublieusement (“forgetfully”)Wikiwand - on Seamless Wikipedia browsing. On steroids.