gladiatorial vs gladiator

gladiatorial is not a noun while gladiator is a noun.

Word	Noun	Adjective	Verb	Adverb
gladiatorial	No	Yes	No	No
gladiator	Yes	No	No	No

gladiatorial (noun)	gladiator (noun)
	(ancient Rome) a professional combatant or a captive who entertained the public by engaging in mortal combat
	a professional boxer

gladiatorial (adjective)	gladiator (adjective)
of or relating to or resembling gladiators or their combat