an advocate of libertarianism
"The libertarian argued that government intervention in personal choices does more harm than good."
someone who believes the doctrine of free will
"The philosopher argued that our moral responsibility depends on whether we are truly libertarian in believing we possess free will."
One who advocates liberty, either generally or in relation to a specific issue.
"At the local town hall meeting, the new candidate introduced herself as a registered member of the Libertarian Party before outlining her platform on reducing government regulation."
A member of a political party or movement that uses the term "Libertarian" in its name (e.g., the Libertarian Party of the United States); one who is likely to support policies that are libertarian.
Having the beliefs of libertarians; having a relative tendency towards liberty.
"The candidate's victory was largely credited to the surge in support for the new libertarian party in the state."
Of, or pertaining to, a Libertarian Party.
The noun is derived from liber(ty) + -arian (suffix denoting an advocate of or believer in something). The adjective is derived from the noun. sense development The word was first attested in English in 1789 in William Belsham's Essays: see the quotation. This was contrasted with necessitarian, in the context of free will, and was not used in the more frequently encountered modern sense.