- reigning; ruling (usually used following the noun it modifies)
- exercising authority, rule, or influence.
- prevalent; widespread.
"Though the term is only used three times in the full body of his work, the invisible hand has become the regnant image of Smith’s philosophy."
- John Paul Rollert, "Of Morals and Markets", Spring 2016 The University of Chicago Magazine (https://mag.uchicago.edu/economics-business/morals-and-markets)