'Piratical' definitions:

Definition of 'piratical'

From: WordNet
adjective
Characteristic of pirates; "piratical attackers"
adjective
Characteristic of piracy; "piratical editions of my book"

Definition of 'Piratical'

From: GCIDE
  • Piratical \Pi*rat"ic*al\, a. [L. piraticus, Gr. ?: cf. F. piratique.] Of or pertaining to a pirate; acquired by, or practicing, piracy; as, a piratical undertaking. "Piratical printers." --Pope. -- {Pi*rat"ic*al*ly}, adv. [1913 Webster]