Here's what rhymes with sensationalistic.
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flyspeck lipstick lytic critic analytic lyric hemolytic cryptic elliptic haemolytic lithic triptych dipstick diptych civic clinic rhythmic acidic mimic mythic picnic acrylic citric ecliptic limbic physic syphilitic arthritic cynic thymic gimmick nephritic periwig nitpick sylphic intrinsic terrific apocalyptic catalytic monolithic dendritic granitic horrific idyllic pacific paralytic phenotypic rabbinic satiric honorific hydrolytic impolitic neolithic arrhythmic pinprick encephalitic philippic cenobitic juridic nonrhythmic zoophytic specific scientific psychoanalytic parasitic prolific hemispheric proteolytic empiric metaphysic thrombolytic megalithic porphyritic saprophytic bulimic hermaphroditic bromidic extrinsic logarithmic hydrophilic unscientific algorithmic antiarrhythmic basophilic eosinophilic fibrinolytic hieroglyphic unspecific palaeolithic pantomimic coenobitic nonspecific electrolytic carboxylic cataclysmic organismic antisemitic patronymic nonscientific paleolithic polyclinic stratospheric transpacific