Definition of "unhappy" in English

adjective

1. Not happy; sad.

   • I am unhappy.

2. Not satisfied; unsatisfied.

   • An unhappy customer is unlikely to return to your shop.

3. (chiefly dated) Not lucky; unlucky.

   • The doomed lovers must have been born under an unhappy star.

4. (chiefly dated) Not suitable; unsuitable.

noun

1. A person who is not happy.

   • Leduc, as is true of many other unhappies, is largely a confessional writer: her subject is herself, and her gift is a driving, vivacious power that turns her incurable, inveterate unhappiness into a series of dramas […]

verb

1. To make or become unhappy; to sadden.