Definitions for rantingly
Random House Webster's College Dictionary
to speak or declaim extravagantly or violently; talk wildly; rave.
(v.t.)to utter or declaim in a ranting manner.
(n.)extravagant or vehement declamation.
a ranting speech or other utterance.
Origin of rant:
1590–1600; < D ranten (obs.) to talk foolishly
in a ranting manner