Definitions:

1. Having a dark color, complexion, or cast. ADJECTIVE
   • She looked frail standing next to her strong and swarthy brother.
2. Used to describe someone whose skin is weather beaten and darkened by the sun, or has an olive complexion. ADJECTIVE
   • He was a swarthy man in his fifties.

Synonyms:

• black
• brunet
• brunette
• dark-colored
• dark-complexioned
• dark-skinned
• dusky
• sallow
• swart
• tanned