Terrible was an ironclad built for the French Navy in the late 1870s and early 1880s. She was the lead ship of the Terrible class, which included three other vessels. They were built as part of a fleet plan started in 1872, which by the late 1870s had been directed against a strengthening Italian fleet. The ships were intended for coastal operations, and as such had a shallow draft and a low freeboard, which greatly hampered their seakeeping and thus reduced their ability to be usefully employed after entering service. Armament consisted of a pair of 420 mm (16.5 in) guns in individual barbettes, the largest gun ever mounted on a French capital ship. Terrible was laid down in 1877 and was completed in 1887.