Flexible and adaptive as defined by who?
It is a pact by the American people describing how they want their government to operate.
It is not up to the government or any of it's branches to redefine the instructions. Just follow them as written.
The Constitution is flexible and adaptive, through the Amendment process. Other than that, no it is static at any given point in time.
Moreover, it says what it means and means what it says. It drives me batty when people support the libs interpretation and have no CLUE of Jefferson’s Maxim:
“On every question of construction let us carry ourselves back to the time when the Constitution was adopted, recollect the spirit manifested in the debates, and instead of trying what meaning may be squeezed out of the text, or intended against it, conform to the probable one in which it was passed.”
oh and by the way, you can’t maintain a Constitutional Republic in the absence of an informed and moral electorate. We are seeing the proof of this in real time.