Bismuthides are not even wholly ionic; they are intermetallic compounds containing partially metallic and partially ionic bonds.
baɪsmˈʌθaɪdz ɑːɹ nˌɑːt ˈiːvən hˈoʊli aɪˈɑːnɪk; ðeɪ ɑːɹ ˌɪntɚmətˈælɪk kˈɑːmpaʊndz kəntˈeɪnɪŋ pˈɑːɹʃəli mətˈælɪk ænd pˈɑːɹʃəli aɪˈɑːnɪk bˈɑːndz.