slumped
Definitions
To have sat or fallen down heavily and limply.
To have declined suddenly or significantly in value, amount, or quality.
Examples
Exhausted from the long hike, he slumped into the nearest chair.
The tired student slumped over his desk after finishing the final exam.
Synonyms
collapsed slouched drooped sagged slumped over hunched flopped
Antonyms
straightened stood tall perked up erect upright stretched braced