Of a Royal Navy ship of the line in the Napoleonic Era: having 64–80 guns across two gun decks, a complement of 500–650, and weighing approximately 1,750 tons burthen.
Poor, shoddy; less than second-rate.
noun
A third-rate ship of the line.
How often have the words (of) low quality and third-rate occurred in a corpus of books? (source: Google Ngram Viewer )