De-laminate, a term used in construction and manufacturing, refers to the process of separating layers of material from one another. The antonyms for this term are consolidate, unite, or amalgamate, which refer to the joining of different layers or materials to form a solid and integrated structure. Another antonym could be reinforce, which means to strengthen a material, making it stronger and more resistant to separation. The opposite of de-laminate can also be bond, which involves the process of joining two different materials together, creating a strong and permanent connection. These words are essential to know when working with materials and construction, as understanding their meaning can help prevent issues such as material failure, structural instability, and cost overruns.