noun 1.a supporter of legitimate authority, especially of a claim to a throne based on direct
descent.
adjective 2.Also, le·git·i·mis·tic. of, pertaining to, or supporting legitimate authority.
Origin: 1835–45; <
Latin lēgitim(
us) lawful (see
legitim) +
-ist, modeled on
French légitimiste Related forms le·git·i·mism, noun