[1] : The Collaborative International Dictionary of English v.0.48

federalist \fed"eralist\, n. cf. f. f'ed'eraliste.
   an advocate of confederation; specifically amer. hist., a
   friend of the constitution of the united states at its
   formation and adoption; a member of the political party which
   favored the administration of president washington.
   1913 webster

[2] : WordNet (r) 2.0

federalist
     n 1: a member of a former political party in the united states
          that favored a strong centralized federal government
     2: an advocate of federalism

[3] : Moby Thesaurus II by Grady Ward, 1.0

37 moby thesaurus words for "federalist":
   absolute, aristocratic, authoritarian, autocratic, autonomous,
   bureaucratic, civic, civil, constitutional, democratic, despotic,
   dictatorial, fascist, federal, federalistic, governmental,
   gubernatorial, heteronomous, matriarchal, matriarchic, monarchal,
   monarchial, monarchic, monocratic, official, oligarchal,
   oligarchic, parliamentarian, parliamentary, patriarchal,
   patriarchic, pluralistic, political, republican, self-governing,
   theocratic, totalitarian

Federalist >> F Words
Federalist, definition of term: Federalist
federalist_pag1.html

Federalist Part >> F Words
Federalist Part, definition of term: Federalist Part
federalist+part_pag1.html