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impenetrable
[im-pen-i-truh-buhl]
adjective
not penetrable; that cannot be penetrated, pierced, entered, etc.
inaccessible to ideas, influences, etc.
incapable of being understood; inscrutable; unfathomable.
an impenetrable mystery.
Physics., possessing impenetrability.
impenetrable
/ ɪmˈpɛnɪtrəbəl /
adjective
incapable of being pierced through or penetrated
an impenetrable forest
incapable of being understood; incomprehensible
impenetrable jargon
incapable of being seen through
impenetrable gloom
not susceptible to ideas, influence, etc
impenetrable ignorance
physics (of a body) incapable of occupying the same space as another body
Other Word Forms
- impenetrableness noun
- impenetrability noun
- impenetrably adverb
Word History and Origins
Origin of impenetrable1
Example Sentences
Mr Csoka said the prison's approach had been "incomprehensible" and the defence had faced "impenetrable red tape" in getting a laptop to Mr Doyle.
A warning: The nesting doll of literary references in “Katabasis” will be a delight to some and impenetrable to others.
His downfall, like hundreds of other serious criminals in the UK, had been his trust in the Encrochat encrypted phone network - which was believed to be impenetrable.
After his third consecutive riot, Tovar turned to the Olympic Auditorium, the impenetrable concrete bunker in downtown Los Angeles where he’d hosted Black Flag a year before.
Gurpreet entered the US on 15 January, five days before President Trump took office - believing that he had made it just in time, before the borders became impenetrable and rules became tighter.
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