Wellsian adjective 1noun 1forms 3 adjective1 •Of or pertaining to H. G. Wells (1866–1946), English writer regarded as a progenitor of science fiction, or his writings or politics. noun1 •An admirer of H. G. Wells (1866–1946), English writer regarded as a progenitor of science fiction, or his writings or politics.Most Wellsians of course will be familiar with the majority of these stories. — 1998 formsWellsians · more Wellsian · most Wellsian