The antonyms for the word "decreased" are increased, expanded, multiplied, elevated, augmented, boosted, and amplified. When a quantity or amount increases, it becomes larger, more extensive, or more significant than it was before. This can be seen in various aspects of life, such as population growth, economic development, or technological advancements. The opposite of decreased is a positive change that brings growth and progress, leading to better outcomes and improving quality of life. Ultimately, an increase in something represents a positive and beneficial shift away from decline and stagnation.