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