The term "makes useless" refers to an action that renders something ineffective or unproductive. The antonyms of this term are words that describe actions that enhance or improve the value of something. Some possible antonyms for "makes useless" are "enhances," "improves," "revives," "restores," "boosts," "reinvigorates," "rejuvenates," "renews," "upgrades," "refurbishes," and "reconditions." These antonyms indicate actions that give new life or value to something that was previously ineffective or unproductive. Using these antonyms can help us to shift our focus from the negative aspect of making something useless to the positive aspect of improving or enhancing it.