Humanism rhymes with:
determinism, abolitionism, agrarianism, americanism, anachronism, antagonism, arianism, authoritarianism, buchananism, chauvinism, communism, confucianism, creationism, determinism, egalitarianism, expansionism, expressionism, hedonism, hellenism, hooliganism, illusionism, impressionism, interventionism, isolationism, mechanism, microorganism, obstructionism, organism, paganism, perfectionism, peronism, protectionism, puritanism, reaganism, republicanism, revisionism, satanism, sectarianism, tokenism, totalitarianism, unionism, zionism
Humanism sounds like:
hamson, hanagan, hangen, hangin', hangman, hanigan, hanjin, hanken, hankin, hannagan, hanneken, hannesson, hannigan, hanscom, hansen, hanshin, hansma, hansman, hansmann, hansom, hanson, hanssen, hansson, heineken, heinsohn, heinzen, heinzman, heinzmann, hemmingsen, hemmingson, hemocyanin, henchman, henchmen, heneghan, henigan, henken, henkin, hennigan, henningsen, henschen, hensen, henson, hinchman, hingham, hinkson, hinson, hinzman, homogeny, honasan, hunchine, hynson