insular

v.隔离，孤立；使绝缘，使绝热

instruct, instruction, instructional, instructions, instructive, instructively, instructor, instrument, instrumental, instrumentalist, instrumentality, instrumentation, insubordinate, insubordination, insubstantial, insufferable, insufferably, insufficiency, insufficient, insufficiently, insularity, insulate, insulated, insulating, insulating tape, insulation, insulator, insulin, insult, insulting, insuperable, insuperably, insupportable, insurance, insurance broker, insurance policy, insurance premium, insure, insured, insurer,