INIMICAL Meaning of INIMICAL in English [ ɪ'nɪmɪk(ə)l ]■ adjective tending to obstruct or harm; hostile.Derivatives~ly adverb OriginC16: from late L. ~is , from L. inimicus (see enemy ). Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004