decayed
1. [ adjective ] deteriorated by decay or rot
Examples:

"decayed teeth"

Related terms: rotten
2. [ adjective ] damaged by decay; hence unsound and useless
Synonyms: rotted rotten
Examples:

"rotten floor boards" "rotted beams" "a decayed foundation"

Related terms: unsound
Similar spelling:   deuced
  decade
  decked