• (n.) An advocate of the doctrine of philosophical necessity; a nacessitarian. • (a.) Of or pertaining to necessarianism. • (n.) An advocate of the doctrine of philosophical necessity; a nacessitarian. • (a.) Of or pertaining to necessarianism. Found on http://thinkexist.com/dictionary/meaning/necessarian/
Nec`es·sa'ri·an noun [ Confer French nécessarien . See Necessary .] An advocate of the doctrine of philosophical necessity; a necessitarian. Found on http://www.encyclo.co.uk/webster/N/9