ˌɛni dᵻfˈɛktɪv mˈeɪtɹɪks hɐz ɐ nˌɑːntɹˈɪvɪəl dʒˈoːɹdən nˈoːɹməl fˈɔːɹm, wˌɪtʃ ɪz æz klˈoʊs æz wˈʌn kæn kˈʌm tə daɪˌæɡənəlᵻzˈeɪʃən ʌv sˈʌtʃ ɐ mˈeɪtɹɪks.
Any defective matrix has a nontrivial Jordan normal form, which is as close as one can come to diagonalization of such a matrix.