Caruncles are raised, fleshy growths that are often found on birds such as turkeys, chickens, and ducks. Antonyms for the word "caruncles" would describe a lack of or absence of these growths. Such antonyms might include "smooth," "unblemished," "unmarked," "faultless," or "flawless." Alternatively, antonyms for "caruncles" could emphasize the negative aspects of such growths, including "disfigurement," "blemish," "imperfection," "defect," or "aberration." Regardless of the specific antonym used to describe a lack of caruncles, it is clear that these growths play a significant role in the appearance and biology of certain bird species.