The word re-constituting refers to the process of reconstructing or restoring something to its original form or condition. There are several antonyms for this word that include destroy, dismantle, demolish, ruin, and wreck. These antonyms denote the opposite of what re-constituting implies, indicating that something is being broken down or destroyed rather than being restored. Other antonyms for re-constituting include disassemble, breakdown, disintegrate, and deconstruct, all of which suggest that something is being taken apart rather than being put back together. These words help to highlight the various ways in which an object or system can be dismantled or destroyed rather than being re-constituted.