Longman Dictionary of Contemporary English
The Collaborative International Dictionary
Constitutionality \Con`sti*tu`tion*al"i*ty\, n.; pl. - ties.
The quality or state of being constitutional, or inherent in the natural frame.
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The state of being consistent with the constitution or frame of government, or of being authorized by its provisions.
--Burke.Constitutionalities, bottomless cavilings and questionings about written laws.
--Carlyle.
Douglas Harper's Etymology Dictionary
1787, "quality of being in accord with a constitution," from constitutional (adj.) + -ity.
Wiktionary
n. (context legal English) The status of being constitutional; of being in accord with the provisions of the appropriate constitution
Wikipedia
Constitutionality is the condition of acting in accordance with an applicable constitution; the status of a law, a procedure, or an act's accordance with the laws or guidelines set forth in the applicable constitution. When one of these (laws, procedures, or acts) directly violates the constitution, it is unconstitutional. All the rest are considered constitutional until challenged and declared otherwise.
Usage examples of "constitutionality".
The division over the constitutionality of abortion laws was more ideologically and religiously doctrinal than politically partisan.
But the constitutionality of legislation prohibiting the publication by corporations and unions in the regular course of conducting their affairs of periodicals advising their members, stockholders or customers of danger or advantage to their interest from the adoption of measures or the election to office of men espousing such measures has been declared by the Court to be open to gravest doubt.
Hence State sovereignty, and hence his doctrine that in all cases that cannot come properly before the Supreme Court of the United States for decision, each State is free to decide for itself, on which he based the right of nullification, or the State veto of acts of Congress whose constitutionality the State denies.
Benjamin F Wright, the Insular Auditor, definitely questioning the constitutionality of the Act of the Philippine Legislature creating the standing million-peso Independence Fund, suspended further payments under that Act.
The second day of the trial was spent arguing the constitutionality of the new law.
April 30, 1924, the Attorney General of the United States rendered his opinion on the question raised by the Insular Auditor as to the constitutionality of the act of the Philippine Legislature creating a standing Independence Fund.
The pretence that they are established to supply a national currency, does not save their constitutionality, for the convention has not given the General government the power nor imposed on it the duty of furnishing a national currency.