Crossnesses refer to feelings of being irritated or annoyed. Some antonyms for crossnesses are calmness, serenity, peacefulness, and contentment. These words describe a state of mind that is opposite to crossnesses, as they connote a feeling of tranquility and relaxation. Additionally, relaxing activities like meditation, yoga, and deep breathing can help alleviate feelings of crossness and induce a sense of calmness. The key is to identify the source of the crossness and address it proactively to achieve peacefulness. Ultimately, it is essential to stay mindful of one's emotions and work towards establishing a balanced and harmonious state of mind.