Plasticize is a verb often used in the context of materials science and engineering. It refers to the process of making something pliable or flexible by adding plasticizers. Some common synonyms for plasticize include soften, render flexible, make malleable, and make pliant. Other related words might include mold, shape and reshape, bend, curve, and warp. In the manufacturing industry, plasticizing is often used to create materials that are more durable and resistant to wear and tear. By adding plasticizers, manufacturers can improve the properties of a variety of materials, from vinyls and rubbers to textiles and metals.