Tom stared into the impenetrable blackness of the night sky.
Source: tatoeba (1343777)
Impenetrable
//ɪmˈpɛnətɹəbəl//
Synonyms for "impenetrable" (170 found)
Ranked by relevance and common usage.
Closest matches (34)
Strong matches (51)
Related words (85)
luxuriantmassivemonolithicmysticnonporousnonpuncturablenot to be hadnuminousoccultopaqueout of reachovergrownoverpoweringoverrunoverwhelmingpackedpast comprehensionperplexingproofpunctureproof
Show 48 more words
ramblingrankreconditeresistlessriotousserriedsolidsubstantialthick-growingthicksettightun-come-at-ableunaccessibleunaccomplishedunaccountableunapproachableunassailableunattainableunavailableunbeatableunconnectedunconquerableundefeatableundiscoverableunfathomableungettableungraspableunguessedunintelligibleunknowableunobtainableunpassableunperforableunpierceableunprocurableunreachableunsearchableunsecurableunsubduableunsurmountableunweededunyieldingviscidviscoseviscousweed-chokedweed-riddenweedy
Related word relations
OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.
Antonyms
2 entriesSynonyms
1 entriesderived
2 entriesrelated to
8 entriessimilar
7 entriesTranslations
33 translations across 17 languages.
Bulgarian
3 entries- непроницаем adj (not penetrable)
- непроходим adj (not penetrable)
- неразбираем adj (incomprehensible; inscrutable)
Catalan
2 entries- impenetrable adj (not penetrable)
- impenetrable adj (incomprehensible; inscrutable)
Chinese Mandarin
4 entries- 不能渗透的 adj (not penetrable)
- 不能通过的 adj (not penetrable)
- 费解的 adj (incomprehensible; inscrutable)
- 难以理解的 adj (incomprehensible; inscrutable)
Czech
3 entries- nedobytný adj (not penetrable)
- neproniknutelný adj (not penetrable)
- nesrozumitelný adj (incomprehensible; inscrutable)
Dutch
3 entries- onbegrijpelijk adj (incomprehensible; inscrutable)
- ondoordringbaar adj (not penetrable)
- onpeilbaar adj (not penetrable)
Finnish
1 entries- läpitunkematon adj (not penetrable)
French
1 entries- impénétrable adj (not penetrable)
German
1 entries- undurchlässig adj (not penetrable)
Greek
1 entries- αδιαπέραστος adj (not penetrable)
Latin
2 entries- impenetrābilis adj (not penetrable)
- invius adj (not penetrable)
Norwegian Bokmål
1 entries- ugjennomtrengelig adj (not penetrable)
Norwegian Nynorsk
2 entries- ugjennomtrengeleg adj (not penetrable)
- ugjennomtrengjeleg adj (not penetrable)
Portuguese
1 entries- impenetrável adj (not penetrable)
Romanian
3 entries- de nepătruns adj (not penetrable)
- de nestrăpuns adj (not penetrable)
- impenetrabil adj (not penetrable)
Russian
2 entries- непроница́емый adj (not penetrable)
- непроходи́мый adj (not penetrable)
Spanish
1 entries- impenetrable adj (not penetrable)
Ukrainian
2 entries- непробивни́й adj (not penetrable)
- непроникни́й adj (not penetrable)
Sample sentences
15 total sentences available.
In reality, translation is akin to working for peanuts, since the corresponding meaning of something in one language is often hidden in some deep and impenetrable recesses of the other. As a result, the translator is forced to search all over... Never mind that the picky reader is very difficult to fool.
Source: tatoeba (2173917)
The wall appeared to be smooth and impenetrable.
Source: tatoeba (4221460)
The forest was thick and impenetrable.
Source: tatoeba (4913181)
Showing 4 of 15 available sentences.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.