“无主的”的英语可以翻译为：derelict，[法] ownerless，unowned ...

这儿无主的狗真多 呀 !What a lot of ownerless dogs there are here!应该拘禁走失的无主的狗.Stray and unowned dogs should be impounded.我们打的是无主的牌.We played the game in no trumps , ie withno suit chosen as trumps....