noun
unconstitutionality
Legal term referring to the quality or state of being unconstitutional. Used in discussions of laws, government actions, or policies.
その法律の違憲性が裁判で争われた。
The unconstitutionality of that law was contested in court.
最高裁は条例の違憲性を認めた。
The Supreme Court recognized the unconstitutionality of the ordinance.