Synonyms and Antonyms for Impenetrable

Following is a list of 100 synonym words and phrases that are related to impenetrable:

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5 Letter Words

4 Total
heavydensethicktight
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6 Letter Words

3 Total
opaquesealedclosed

7 Letter Words

2 Total
unclearobscure

8 Letter Words

2 Total
unporouspassless

9 Letter Words

3 Total
inaudiblenonporousunhidable
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10 Letter Words

17 Total
impassablemysteriouswatertightimperviousunyieldingimpermeantunpassablebreachlessunpennableimpassibleunpassibleunpervadedunhailableunexpiableimprenableinviolableunpoppable

11 Letter Words

13 Total
insuperableinscrutableimpregnableimpermeablebulletproofunpermeatedimperviableunpermeableuninvadableunenterableunimpedibleunpregnableunleachable

12 Letter Words

24 Total
inaccessibleunfathomableunbreachableunassailableinvulnerableunpenetrableinpenetrableunpenetratedimpierceableunpierceablenonpenetrantnonpermeableimperforableunbypassableinexpugnableunintrudableunrepellablenonpermeatedunbroachableundeterrableindetectableunimpairableunimpugnableuncombatable

13 Letter Words

14 Total
inconceivablenonpenetrableunpenetrativenonpenetratedunimpregnableunpenetratingunpuncturableintransitablenonpermeatingnonpermutablenonattackableunassaultablenondamageableunsusceptible
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14 Letter Words

12 Total
insurmountableunintelligibleindecipherableunimpenetrableimpertransiblenonpenetratingunpermeablizednonpenetrativenonpuncturablenontraversableuncontaminableunapproachable

15 Letter Words

1 Total
unpermeabilized

16 Letter Words

4 Total
uncomprehensibleincomprehensibleintransgressiblenonpermeabilized

17 Letter Words

1 Total
nonpermeabilizing
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Using this list of similar-meaning words, you can choose the best synonyms to replace impenetrable in your sentences.

Additionally, you'll find antonyms included, perfect for when you need the complete opposite meaning of impenetrable in your writing.

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