Usage examples (4)

• Verb (used with object), verb (used without object) : Avarice had harshened his features
• I refuse to let the hate get on me lest it change my natural charm and harshen my fluffy self.
• (He rewrote Ghosts -- at age 85, mind you -- with loads of obscenities to harshen the inter-familial accusations even more, and drew out the final death scene, as...
• Not the great sorrows of life, or its great sacrifices, but fretfulness, ignoble worries, sordid cares, are that which draw lines upon a woman's face and harshen her...