Fowled is a term that usually refers to something being tainted or degraded, especially a source of water or food. There are several synonyms that can be used interchangeably with fowled, including contaminated, polluted, spoiled, tainted, and corrupted. These terms convey the same idea of something being impure or unclean and typically imply that the affected item or area may be dangerous or unhealthy to use or consume. Other possible synonyms for fowled might include defiled, fouled up, or compromised, depending on the context in which the word is being used. Regardless of the specific synonym chosen, all convey the idea of something being blemished or soiled in some way.