keener

Darcy’s shameful boast of what misery he had been able to inflict gave her a keener sense of her sister’s sufferings.

The North Wind first tried his power and blew with all his might, but the keener his blasts, the closer the Traveler wrapped his cloak around him, until at last, resigning all hope of victory, the Wind called upon the Sun to see what he could do.

Holmes looked even thinner and keener than of old, but there was a dead-white tinge in his aquiline face which told me that his life recently had not been a healthy one.

But suddenly I was aware of that which his keener senses had already distinguished.