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