Big Huge Thesaurus

imperviable

adjective

• impervious

antonyms

• pervious

related terms

• impermeable

similar terms

• acid-fast
• colorfast
• corrosion-resistant
• fast
• greaseproof
• ladder-proof
• moth-resistant
• mothproof
• proof
• resistant
• rot-resistant
• run-resistant
• runproof
• soundproof

sounds kind of like

• improbable
• improbably
• improvable
• inoperable
• invariable