Definition of: stalwart

(stôl′wərt) adjective
1. Strong and brawny; robust.
2. Resolute: determined; unwavering.
3. Brave; courageous.
—noun
1. An uncompromising partisan, as in politics.
2. U.S. A member of a conservative faction of the Republican party (1874–85) which opposed civil service reform and liberal policies toward the South. [Var. of STAL-WORTH]
—stal′wart·ly adverb
—stal′wart·ness noun