un·con·sti·tu·tion·al /ˌʌnˌkɑn(t)stəˈtuʃnəl, ˈtju, ʃənḷ/
(a.)非立憲的,違反憲法的,違憲的
Un·con·sti·tu·tion·al a. Not constitutional; not according to, or consistent with, the terms of a constitution of government; contrary to the constitution; as, an unconstitutional law, or act of an officer. --Burke. -- Un*con*sti*tu*tion*al*i*ty n. -- Un*con*sti*tu*tion*al-ly adv.
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unconstitutional
adj : not consistent with or according to a constitution; contrary
to the U.S. Constitution [ant: constitutional]