attainted UK /əˈteɪntɪd/US /əˈteɪntəd/ adjective2 •Subject to attainder; condemned to death or outlawry, hence stripped of one's titles, hereditary rights, or possessions.The king stands in your father's place, since your brother is an attainted traitor. — 2000 •(no longer used) Tainted, corrupted. formsmore attainted · most attainted