Definition of pugilant in US English:

pugilant

adjective

rare
  • Given to or characterized by boxing or fighting; (chiefly figurative) aggressive, belligerent.

Origin

Late 19th century; earliest use found in Fraser's Magazine for Town and Country. From classical Latin pugilant-, pugilāns, present participle of pugilārī (also pugillārī) to box (2nd cent. a.d. in Apuleius) from pugil.