Hostile displaced at standard load and at deep load. The ship had an overall length of, a beam of, and a draught of. She was powered by Parsons geared steam turbines, driving two shafts, which developed a total of and gave a maximum speed of. Steam for the turbines was provided by three Admiralty 3-drum water-tube boilers. Hostile carried a maximum of of fuel oil that gave her a range of at. The ship's complement was 137 officers and men in peacetime. The ship mounted four 45-calibre 4.7-inch Mark IX guns in single mounts. For anti-aircraft defence Hostile had two quadruple Mark I mounts for the 0.5 inch Vickers Mark III machine gun. She was fitted with two above-water quadruple torpedo tube mounts for British 21 inch torpedo| torpedoes. One depth charge rail and two throwers were fitted; 20 depth charges were originally carried, but this increased to 35 shortly after the war began.
Service
Hostile was laid down by Scotts Shipbuilding & Engineering Company at Greenock, Scotland, on 27 February 1935, launched on 24 January 1936, and completed on 10 September 1936. Excluding government-furnished equipment like the armament, the ship cost £253,382. She was assigned to the 2nd Destroyer Flotilla of the Mediterranean Fleet upon commissioning. Hostile patrolled Spanish waters in 1937 during the Spanish Civil War enforcing the edicts of the Non-Intervention Committee. The ship received an overhaul at Gibraltar between 17 November and 15 December 1937. She resumed patrolling Spanish waters in 1938 and 1939. After the end of the Spanish Civil War, Hostile was refitted in Sheerness Dockyard between 31 May and 26 July 1939. She returned to the Mediterranean and was in Malta when World War II began. In October the ship was transferred to Freetown to hunt for German commerce raiders in the South Atlantic with Force K. The ship and her half-sisters,,, and, rendezvoused with the battlecruiser, the aircraft carrier, and the light cruiser on 17 December. They refuelled in Rio de Janeiro, Brazil, before proceeding to the estuary of the River Plate in case the damaged German pocket battleship attempted to escape from Montevideo, Uruguay, where she had taken refuge after losing the Battle of the River Plate. Hostile was overhauled at Chatham Dockyard between 26 January and 29 March 1940 and then rejoined the 2nd Destroyer Flotilla, now assigned to the Home Fleet. During the First Battle of Narvik on 10 April the ship engaged the and badly damaged her, hitting her at least five times. Hostile was only hit once, but the shell did little damage. She escorted her badly damaged sister ship,, to the repair base set up at Flakstadøya in the Lofoten Islands. Hostile briefly escorted the battleship before she returned to Rosyth for repairs between 27 April and 4 May. The ship briefly returned to Norwegian waters, where she again escorted Warspite, before being transferred to the Mediterranean Fleet in mid-May. On 9 July Hostile participated in the Battle of Calabria as an escort for the heavy ships of Force C and unsuccessfully engaged Italian destroyers, suffering no damage. The ship, together with her sister,, and the destroyers and, were ordered to Gibraltar on 22 August where they were to join Force H. Hostile struck an Italian mine en route on the early morning of 23 August off Cap Bon that broke her back. The explosion killed five men and wounded three others. Mohawk took off the survivors while Hero fired two torpedoes to scuttle her.
