Definition of politicaster in US English:

politicaster

noun

archaic, derogatory, literary
  • An inadequate or contemptible politician.

Origin

Mid 17th century; earliest use found in John Milton (1608–1674), poet and polemicist. From politic + -aster, perhaps after Italian politicastro.

Pronunciation

politicaster

/pəˈɪtɪkastə/