extrametaphysical /ˌɛk.stɹəˌmɛt.əˈfɪz.ɪ.kəl/ adjective1 •(rare) Outside of metaphysics.To me that Arius, whose mind was acute and extrametaphysical, determined to resolve a question that cannot be explained, and, finding he could not, refused to hold it. — 1861