impervious

Từ điển WordNet v3.1 - WordNet Dictionary

adjective

not admitting of passage or capable of being affected (Freq. 1)
- a material impervious to water
- someone impervious to argument
• Syn:
imperviable
• Ant:
pervious
• Similar to:
fast, acid-fast, colorfast, greaseproof, mothproof,
moth-resistant, proof, resistant, corrosion-resistant, rot-resistant, runproof,
ladder-proof, run-resistant, soundproof
• See Also:
impermeable
• Derivationally related forms:
imperviousness