Being remiss means being careless or neglectful in performing a duty or responsibility. Its antonyms are conscientious, diligent, and attentive. Being conscientious is the opposite of remissness because it means being meticulous and responsible in performing tasks. Diligent refers to being persistent in doing something with effort and care while attending to even the smallest details. Being attentive is another essential antonym for remissness because it means being aware, alert, and careful while performing any task. In contrast, being remiss is associated with laziness, lack of attention, and neglect, which can have serious repercussions, especially in professional settings, where being conscientious, diligent, and attentive are highly valued virtues.