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