✔ 最佳答案
He is defeated - he lost
He defeated the enemy - he won
I feel defeated - I lost
I defeated him in the game - I won
A similar word is Cheat
I cheated him and took all his money
I am cheated and he took all my money
He felt cheated as the woman ran away with another man with his money
It is the active/passive use of the word which alternate the meaning.