The tone of his voice has coarsened and his singing lacks the elegant finesse he once possessed.
The voice tends to coarsen when under pressure in higher registers.
The facade of the house has lost its render, exposing stones coarsened by age.
Often, in the pursuit of the largest audience, television "dumbs down" and coarsens.
This presentation of extreme violence as entertainment, he says, coarsens our society.
He and his allies are seen as having coarsened the political debate.
He has been coarsened and corrupted by the world of business.