impermeable
UK: ɪmˈpɜː.mi.ə.bəl | US: ɪmˈpɜːr.mi.ə.bəl
adj. not allowing fluid or gas to pass through
adj. resistant to influence or penetration (figurative)
impermeable = im<not> + perme<pass through> + able<capable of>
- im (Latin prefix "in-" meaning "not"; assimilated to "im-" before "p")
- perme (from Latin "permeare" <per- "through" + meare "to pass">)
- able (Latin suffix "-abilis," indicating capacity or capability)
Etymology Origin:
The word traces back to Latin impermeabilis, combining im- (negation) + permeare ("to pass through"). The root permeare itself merges per- ("through") and meare ("to go, pass"), reflecting the concept of penetration. Over time, impermeable evolved to describe materials or barriers that physically or metaphorically block passage.
The jacket is made of impermeable fabric to keep rain out.
Scientists developed an impermeable membrane for chemical filtration.
His stubbornness rendered him impermeable to logical arguments.
The treaty created an impermeable boundary between the two nations.
Plastic liners are impermeable to water, preventing leaks.