INDIFFERENT, adj. Imperfectly sensible to distinctions among things.
"You tiresome man!" cried Indolentio's wife,
"You've grown indifferent to all in life."
"Indifferent?" he drawled with a slow smile;
"I would be, dear, but it is not worth while."
Apuleius M. Gokul
-- Ambrose Bierce, "The Devil's Dictionary"