impervious

adj. 不能渗透的，不为所动的

imperiously, imperiousness, imperishable, impermanence, impermanent, impermeability, impermeable, impermissible, impersonal, impersonality, impersonally, impersonate, impersonation, impersonator, impertinence, impertinent, impertinently, imperturbability, imperturbable, imperturbably, imperviousness, impetigo, impetuosity, impetuous, impetuously, impetus, impiety, impinge, impious, impiously, impish, impishly, impishness, implacable, implacably, implant, implantation, implausibility, implausible, implement,