WordWeb Online

1. Enjoying or showing or marked by joy or pleasure
   "a happy smile"; "spent many happy days on the beach"; "a happy marriage"
    
2. Marked by good fortune
   "a happy outcome";
   - felicitous
    
3. Eagerly disposed to act or to be of service
   "happy to help";
   - glad
    
4. Well expressed and to the point
   "a happy turn of phrase";
   - well-chosen

Derived forms: happier, happiest

See also: blessed, blissful, bright, cheerful, content[2], contented, elated, euphoric, felicitous, felicity, fortunate, glad, golden, halcyon, happiness, joyful, joyous, laughing, prosperous, riant, willing

Antonym: unhappy

Encyclopedia: Happy, Kentucky