1. to make or become less hard, firm, or rigid
2. to make or become less harsh, severe, or intense
3. to make or become more gentle or sympathetic

Examples

• Heat will soften the butter for easier mixing.
• The rain began to soften the hard ground.
• She tried to soften her criticism with a smile.
• His expression softened when he saw the children.
• The new cushions will soften the hard bench.
• Time has softened his anger toward his brother.
• The artist used white paint to soften the harsh lines.