gladiator vs gladiatorial

gladiator is a noun but gladiatorial is not a noun.

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

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

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