0 in a way that is unconstitutional (= not allowed by the rules of government):
Local activists said the bill was passed unconstitutionally.
His punishment was unconstitutionally excessive.
They believe the act unconstitutionally restricts freedom of speech.
The statute is challenged by a landlord who has quadr upled rent in an effort to drive out existing tenants, on the ground that it is unconstitutionally vague.
I was somewhat horrified that my noble friend was accused of acting unconstitutionally by tabling the amendments.
What they cannot do is to say that we have acted irresponsibly, immoderately, or unconstitutionally.
There cannot be a government of any party in the other place who can really complain that we have unconstitutionally obstructed them.
All of that provided the means by which the islands became independent unconstitutionally and without the people concerned being consulted.