insuperable

adj (fml 文) (of difficulties) that cannot be overcome （指困难）不能克服的: insuperablebarriers, obstacles, etc 不可逾越的障碍、 阻碍等. Cf 参看 insurmountable.

instrumentation, insubordinate, insubordination, insubstantial, insufferable, insufferably, insufficiency, insufficient, insufficiently, insular, insularity, insulate, insulated, insulating, insulating tape, insulation, insulator, insulin, insult, insulting, insuperably, insupportable, insurance, insurance broker, insurance policy, insurance premium, insure, insured, insurer, insurgent, insurmountable, insurrection, insurrectionist, int, intact, intaglio, intake, intangibility, intangible, intangibly,