social reformer(n = noun.person) crusader, meliorist, reformer, reformist - a disputant who advocates reform;
is a kind of controversialist, disputant, eristic
has particulars: abolitionist, emancipationist, birth-control campaigner, birth-control reformer, chartist, civil rights activist, civil rights leader, civil rights worker, demonstrator, protester, dry, prohibitionist, conservationist, environmentalist, feminist, libber, women's liberationist, women's rightist, flower child, hippie, hippy, hipster, freedom fighter, insurgent, insurrectionist, rebel, activist, militant, non-resistant, passive resister, preservationist, utopian, anthony comstock, comstock, dix, dorothea dix, dorothea lynde dix, hus, huss, jan hus, john huss, owen, robert owen, girolamo savonarola, savonarola, francis everett townsend, townsend, john wilkes, wilkes

birth-control reformer, economic and social council, economic and social council commission, medical social worker, reformer, social, social action, social activity, social affair, social anthropologist, social anthropology, social assistance, social class, social climber, social climbing, social club, social contract, social control, social convention, social dancer, social dancing, social democracy, social democratic party, social development commission, social disease, social drinker, social event, social function, social gathering, social grace, social group, social insurance, social intercourse, social lion, social movement, social occasion, social organisation, social organization, social outcast, social phobia, social policy, social process, social psychology, social rank, social relation, social science, social scientist, social season, social secretary, social security, social security administration, social security number, social service, social station, social status, social stratification, social structure, social system, social unit, social welfare, social work, social worker