Re-constitute is a verb that refers to rebuilding something, especially after it has been damaged or destroyed. The antonyms for re-constitute are dismantle, destroy, disintegrate, ruin, and demolish. These words describe the opposite action of re-constitute, indicating the complete opposite action of rebuilding or re-erecting. Dismantling refers to taking apart the structure or the components of something, while destroying and ruining entail causing complete damage or ruining the integrity of an object. Disintegrating means breaking something down into smaller parts, whereas demolishing involves tearing it down completely. These antonyms of re-constitute highlight the destruction of something instead of its repair or rebuilding.