Antonyms for superficial tonsillitis can be deep tonsillitis, chronic tonsillitis, or acute tonsillitis. While superficial tonsillitis refers to the inflammation of the surface layer of the tonsils, deep tonsillitis involves inflammation of the deeper tissue layers of the tonsils. Chronic tonsillitis is a long-term condition characterized by recurrent inflammation of the tonsils, while acute tonsillitis is a sudden onset of inflammation that may cause fever, sore throat, and difficulty swallowing. In contrast to superficial tonsillitis, these forms of tonsillitis may require more intensive treatment, including antibiotics, surgery, or tonsillectomy, depending on the severity and frequency of the condition.