Here's what rhymes with opportunistic.
mystic cystic optimistic autistic ballistic dualistic theistic juristic monistic patristic artistic stylistic holistic journalistic pessimistic statistic logistic paternalistic sadistic animistic atheistic egoistic hedonistic pantheistic chauvinistic aphoristic euphemistic jingoistic sophistic puristic linguistic realistic antagonistic unrealistic deterministic heuristic humanistic idealistic mechanistic naturalistic probabilistic simplistic altruistic capitalistic moralistic ritualistic synergistic fatalistic futuristic novelistic polycystic positivistic syllogistic cannibalistic egotistic eulogistic shamanistic surrealistic inartistic pugilistic belletristic casuistic nepotistic monopolistic nationalistic anachronistic narcissistic pluralistic rationalistic relativistic socialistic communistic legalistic militaristic monotheistic polytheistic voyeuristic feudalistic overoptimistic characteristic materialistic impressionistic oligopolistic individualistic imperialistic universalistic expressionistic uncharacteristic spiritualistic sociolinguistic Words that almost rhyme with opportunistic
flyspeck mimic mythic lipstick lytic dipstick diptych nitpick critic civic lyric picnic citric cryptic elliptic physic cynic lithic thymic gimmick triptych sylphic analytic clinic rhythmic terrific acidic dendritic ecliptic granitic idyllic limbic pacific arthritic empiric honorific arrhythmic bulimic nephritic periwig pinprick juridic bromidic zoophytic specific intrinsic apocalyptic catalytic hemolytic parasitic prolific acrylic horrific paralytic proteolytic rabbinic satiric basophilic haemolytic impolitic neolithic antisemitic patronymic porphyritic saprophytic pantomimic philippic cenobitic scientific monolithic phenotypic syphilitic antiarrhythmic hydrolytic metaphysic megalithic unspecific palaeolithic coenobitic nonrhythmic extrinsic logarithmic nonspecific hemispheric hydrophilic unscientific algorithmic carboxylic cataclysmic fibrinolytic organismic thrombolytic paleolithic encephalitic psychoanalytic electrolytic eosinophilic hieroglyphic stratospheric hermaphroditic nonscientific transpacific polyclinic