necessitarian

[nuh-ses-i-tair-ee-uh n] /nəˌsɛs ɪˈtɛər i ən/
noun
1.
a person who advocates or supports necessitarianism (distinguished from libertarian).
adjective
2.
pertaining to necessitarians or necessitarianism.
Also, necessarian.
Origin
1790-1800; necessit(y) + -arian
Word Origin and History for necessitarian
n.

1754, from necessity + -arian. As an adjective from 1739. Related: Necessitarianism.