Cannot Uninstall A Specific Expansion Pack From Steam

games cannot be removed from a steam account to uninstall a game through steam go to your game library  right click the game name in your list of games icon-delete local content  or on the game icon list name of the game-properties the third tab local files-delete local game content  (the game name in your list list icon will/should then be greyed out you can  use the show installed games only in your list of games if you don't want to see the game in your list of games and can you should be able to install your game later on if you wish by unhideing the game and right clcik install )

edit to strike out icon