Re-constructed refers to the process of rebuilding something which has been destroyed or taken apart. As such, antonyms for re-constructed might include words such as dismantled, demolished, destroyed, ruined, or torn down. These words suggest the opposite of building or creating something anew, instead implying a state of destruction or decay. Other options might include words like deconstructed or disassembled, which suggest the act of taking something apart rather than putting it back together. Whatever the antonym, it serves as a reminder that the act of reconstruction is both a valuable and fragile one, requiring care and attention to detail.