impermeable

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

One of the reed-covered mounds was located directly above a point where freshwater was rising through a break in the impermeable layer beneath the lake.

From Science Daily • Mar. 21, 2026

Although scientists once believed that the placenta was a tight, impermeable barrier separating mother and child, that’s not true.

From The Wall Street Journal • Nov. 4, 2025

Decades of rapid urban development have encased the city with impermeable concrete surfaces that hinder the natural drainage of water.

From Los Angeles Times • Aug. 10, 2025

It is the fantasy of an impermeable barrier that allows one’s purity to remain unsullied.

From Salon • Oct. 17, 2024

But it is illusion to think that there is anything fragile about the life of the earth; surely this is the toughest membrane imaginable in the universe, opaque to probability, impermeable to death.

From "The Lives of a Cell" by Lewis Thomas