monopolistic

adj

1. Acting in the manner of a monopoly.

   “The antitrust laws try to prevent monopolistic behavior.”

   “There was a prevailing fear of the effect of large undertakings becoming monopolistic, and Parliament showed itself unwilling to sanction any large groupings.”

   “But electric vehicles and the batteries that made them run became ensnared in corporate scandals, fraud, and monopolistic corruption that shook the confidence of the nation and inspired automotive upstarts.”

   “Dominguez-González explained: "The Spanish market is no longer a monopolistic one, and there is great interest among both the existing open access operators and potential future ones in providing services on other lines."”