The antonyms for the word "decompose" are words that are related to the opposite of decomposition or to restore something to its original state. These include words such as "revive," "rejuvenate," "unwind," "recompose," and "renew." Revive means to bring something back to life, while rejuvenate means to restore something to a youthful or energetic state. Unwind means to undo the damage caused by decomposition or other forms of deteriorating factors. Recompose means to put something back together as it should be, while renew means to refresh or regenerate something. These antonyms of "decompose" provides a clear picture of restoring something after being damaged.