unconstitutional
Concise Oxford English Dictionary © 2008 Oxford University Press:
unconstitutional/ʌnkɒnstɪˈtjuːʃənl/
▶adjective not in accordance with the political constitution or with procedural rules.
– derivatives
unconstitutionality noun,
unconstitutionally adverb.
unconstitutionality noun,
unconstitutionally adverb.
'unconstitutional' also found in these Oxford entries:

