unconstitutionally
adverb/ˌʌnˌkɒnstɪˈtjuːʃənəli/
/ˌʌnˌkɑːnstɪˈtuːʃənəli/
- in a way that is not allowed by the constitution of a country, a political system or an organization
违背宪法的；违反宪章（或章程）的 Oxford Collocations DictionaryUnconstitutionally is used with these verbs:- act