Decompounds refer to the act of breaking apart or separating something into its constituent parts. Antonyms for decompounds would therefore involve combining or joining things together. Some potential antonyms for decompounds include: compounds, amalgamates, integrates, unites, joins, links, combines, fuses, blends, and synthesizes. These Antonyms are essentially the opposite of decompounding, as they involve bringing together different elements rather than analyzing them independently. Using these antonyms, you can convey a sense of integration, fusion, or coming together, which can be useful in various contexts, such as in chemistry, linguistics, or business.