Impermeable

Origin

From French imperméable, from Latin impermeābilis, from im- + permeābilis ("permeable").

Full definition of impermeable

Adjective

1. impossible to permeate
2. not allowing passage, especially of liquids; waterproof

Synonyms

• sealed

Antonyms

• permeable

Related terms

• nonpermeable
• permeability
• impermeability