Biting nails is a nervous habit that many people struggle to quit. However, there are several antonyms to this habit that can help individuals break the cycle. One such antonym is "relax". Instead of biting their nails, individuals can try relaxation techniques such as deep breathing, meditation, or yoga to calm their nerves. Another antonym to biting nails is "chew gum". Chewing gum can help individuals redirect their nervous energy away from their nails and satisfy their urge to chew on something. Lastly, "occupy hands" is an excellent antonym for biting nails. This can involve engaging in activities such as knitting, coloring, or playing with a stress ball, which keep the hands busy and away from the nails.