Read the dictionary definition of blessed. All definitions for this word.
1. expletives used informally as intensifiers
1. he's a blasted idiot
2. it's a blamed shame
3. a blame cold winter
4. not a blessed dime
5. I'll be damned (or blessed or darned or goddamned) if I'll do any such thing
6. he's a damn (or goddam or goddamned) fool
7. a deuced idiot
8. an infernal nuisance
2. highly favored or fortunate (as e.g. by divine grace)
1. our blessed land
2. the blessed assurance of a steady income
3. characterized by happiness and good fortune
1. a blessed time
4. enjoying the bliss of heaven
5. Roman Catholic; proclaimed one of the blessed and thus worthy of veneration
6. worthy of worship
1. the Blessed Trinity
See also:
Merriam-Webster definition of blessed