inimicitious /ɪnɪmɪˈsɪʃəs/ adjective1 •(no longer used) Inimical; unfriendly, hostile.to drive the gall and other bitter juices from the gall bladder, liver and sweet-bread of his majesty's subjects, with all the inimicitious passions which belong to them, down into their duodenums. — 1761 formsmore inimicitious · most inimicitious