Subtractive is a term that is used to describe something that involves taking away, reducing, or decreasing. Its antonyms, on the other hand, are words like additive, augmentative, positive, or constructive. Additive refers to something that adds or builds upon something else, while augmentative is a word that means to increase or make something bigger. Positive describes something favorable, beneficial, or affirmative, whereas constructive refers to something that is productive, useful, or helpful. These antonyms offer a wide range of alternative meanings that can be useful in expressing ideas that are different from those associated with subtractive.