ultrapowerful

adj

1. (rare)Extremely or exceedingly powerful; having, or capable of exerting great power, potency, or influence.

   “The Ministry of Ways and Communications has rectified certain clauses of the instructions issued with Decree No. 14712 of March 7, 1921, granting permission to the Companhia Radiotelegraphica Brasileira to install and operate ultrapowerful wireless stations.”

   “An overcall in the opponents' suit or a notrump overcall of an opposing preemptive four -or five-bid is an ultrapowerful hand, forcing to game.”

   “There is work of great Importance to be done to perfect the Corps and its reserves as an ultrapowerful striking force.”