impervious

词形变化：

副词: imperviously | 名词: imperviousness |

同义词：

stony | unbending | unyielding | unwavering | rigid | obdurate | unmoved | unaffected | unfeeling | impermeable | resistant | solid | waterproof | water-resistant | invulnerable | rainproof | proof | watertight | imperviable |

反义词：

pervious |

词义辨析：

同义参见:

stony