Quinines, also spelled quinines, are bitter compounds derived from the bark of the cinchona tree that are used to treat malaria. Antonyms for "quinines" could include words relating to sweetness, such as sugar, candy, or honey. Other antonyms might include words relating to calm or relaxation, such as peaceful, restful, or tranquil. Alternatively, antonyms could relate to health and wellness, such as vitality, strength, or energy. While antonyms for "quinines" may not directly counteract the effects of this powerful anti-malaria drug, they do provide a contrasting idea or concept that highlights the differences between these words.