The word "broke smithereens" means to break completely into tiny pieces. Some antonyms for this phrase could be "intact," "unbroken," "undamaged," "whole," and "in one piece." These words refer to the opposite of breaking something into smithereens. They describe objects that are complete and have not been shattered into fragments. Synonyms for these antonyms could include words like "unscathed," "unharmed," and "undisturbed." Overall, these antonyms offer a sense of wholeness and preservation, in contrast to the destruction and fragmentation implied by the term "broke smithereens.