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Definition of impermeably
impermeably
/ɪmˈpɝː.mi.ə.bli/
im · per · me · a · bly
Adjective:impermeable
impermeably Lexical Profile
CEFR
C2
Grade
12
Tier
2
Usage
Rare
Syllables
5
impermeably Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• adverb
1
In a manner that does not allow fluids, gases, or other substances to pass through.
Example
"The underground storage tank was impermeably sealed with a heavy synthetic liner to prevent groundwater contamination."
Synonyms
View all synonyms for impermeably Antonyms
View all antonyms for impermeably• Rhymes for impermeably
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Usage Trend
Historical frequency of usage in published text.
180019102020
Data source: Google Books Ngram Viewer
Cite this Entry
Wordmom. (2026). Definition of Impermeably. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/impermeably