pluperfect UK /pluːˈpɜː.fɪkt/US /pluˈpɝ.fɪkt/adjective 5noun 2forms 3 adjective5 •Pertaining to action completed before another action or event in the past, past perfect. •(informal) Used as an intensifier in various interjections.What in the pluperfect hell is going on here?! •More than perfect, utterly perfect, ideal. •Being or relating to a certain type of graph that complies with a theorem ("pluperfect graph theorem") discovered by D. R. Fulkerson in 1970, satisfying even more constraints than a perfect graph. •Synonym of multiperfect. noun2 •The pluperfect tense, the past perfect. •A verb in this tense. formspluperfects · more pluperfect · most pluperfect