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