Residual

And even though the root cause of his anger was gone, and he knew he no longer had reason to be angry, the emotion stayed with him, not as strong, but still there, affecting his mood (snappish), his focus (inconsistent), his appetite (nonexistent). It felt similar to a hangover -- alcohol gone from the system, his body still recovering from its recent presence -- or, it seemed to him, more like the residual smell of turpentine on his hands, even after a thorough washing.