Crumblings are small fragments or pieces that have fallen off a larger structure or substance. The antonyms for this word are wholes, intactness, completeness and stability. These words are the opposite of crumblings as they signify something that is not broken or fragmented. Wholes refer to something that is complete and undivided, while intactness is something that remains undamaged and complete. Completeness implies that something is whole and lacking nothing, while stability refers to something that is firm and steady. In essence, these antonyms for crumblings refer to something that is unbroken, steady and unified.