1. having the ability to insulate; providing insulation against heat, cold, sound, or electricity

Examples

• The insulative properties of fiberglass make it ideal for home insulation.
• Rubber is an insulative material commonly used in electrical wiring.
• The jacket's insulative lining keeps you warm in winter.
• Foam provides excellent insulative value for refrigerators.
• The insulative layer in the walls reduces energy costs.