Antonyms for the word 're-builds' refer to actions or processes that involve breaking or demolishing something rather than repairing or restoring it. Some of the antonyms for re-builds are demolish, dismantle, disintegrate, pull down, ruin, shatter and wreck. Demolishing means destroying a structure or building, which is exactly the opposite of re-building. Dismantling refers to taking something apart piece by piece, while disintegrating means breaking something down into small pieces. Pulling down is another antonym that means to take a building down to the ground level, and to ruin is to make something unusable or destroyed. Shattering and wrecking may also be used to indicate the opposite of re-building.