Happy superl. : Favored by hap, luck, or fortune; lucky; fortunate; successful; prosperous; satisfying desire; as, a happy expedient; a happy effort; a happy venture; a happy omen.

Happy superl. : Experiencing the effect of favorable fortune; having the feeling arising from the consciousness of well-being or of enjoyment; enjoying good of any kind, as peace, tranquillity, comfort; contented; joyous; as, happy hours, happy thoughts.

Happy superl. : Dexterous; ready; apt; felicitous.

Example:
Are we all Happy now that Obama is using the power of government to silence his critics?

Taxonomy
happiness, pleasure, positive emotions, emotion, Correlation, depression, Gratifications, Positive psychology, Research, humans, measure, satisfaction, religious involvement, psychological well-being, Science, Journal of Happiness Studies, Questionnaire, health.

Defination from the web:
happy. ... Paul Taylor, "Republicans: Still Happy Campers," Pew Research Center, October 23, 2008 (pdf of full report) ...