galley: a large medieval vessel with a single deck propelled by sails and oars with guns at stern and prow; a complement of 1,000 men; used mainly in the Mediterranean for war and trading
vessel: a craft designed for water transportation
indirect antonym: antonyms whose opposition is mediated (e.g., the antonymy of `wet' and `parched' is mediated by the similarity of `parched' to `dry')