Another word for lost

Natasha with animated and excited face was telling him how she had gone to look for mushrooms the previous summer and had lost her way in the big forest.
Your excellency! he kept repeating pertinaciously while he shook Pierre by the shoulder without looking at him, having apparently lost hope of getting him to wake up.
They did not meet again, and only much later did Pierre learn that he lost an arm that day.
He swore on his honor that the Russians were lost if the Emperor would give another division.
He knew that it was a lost battle and that the least accident might now--with the fight balanced on such a strained center--destroy him and his army.