The Collaborative International Dictionary
Hegemonical
Hegemonic \Heg`e*mon"ic\, Hegemonical \Heg`e*mon"ic*al\, a. [Gr.
?. See Hegemony.]
Leading; controlling; ruling; predominant. ``Princelike and
hegemonical.''
--Fotherby.
Wiktionary
hegemonical
a. leading; controlling; predominant