NECESSITARIAN Meaning of NECESSITARIAN in English [ nəˌsɛsɪ'tɛ:rɪən ](also necessarian ˌnɛsɪ'sɛ:rɪən ) ■ noun & adjective Philosophy another term for determinist (see determinism ).Derivatives~ism noun Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004