The word "discard" means to get rid of, throw away or reject something that is no longer needed. The antonyms for discard would, therefore, be words that mean to keep, preserve or retain something. Some antonyms for discard include: keep, save, maintain, retain, hoard, accumulate, store, conserve, treasure, and hold on to. These words suggest that the item in question is valuable and worth preserving. In contrast, discard implies that the item has become obsolete or is no longer useful. Understanding antonyms for words like discard is important in expanding vocabulary and gaining a fuller appreciation of the nuances of language.