"Re-institute" means to restore or bring back something to its previous state, meaning the antonyms for 're-institute' would be all the opposite terms that mean to remove, eliminate or cancel. The antonyms for "re-institute" include abolish, cancel, discontinue, end, eliminate, halt, stop, and terminate. By contrast, synonyms for "re-institute" include renew, reinstate, restore, and revive. While "re-institute" is often used concerning policies or laws, its antonyms can refer to everything from material objects, to rules, to relationships. Therefore, understanding these antonyms can improve communication and provide clarity in everyday life situations.