Examples of impenetrable in a Sentence
The fort's defenses were thought to be impenetrable.
the ancient temple was surrounded by vast stretches of impenetrable jungle
Recent Examples of impenetrable from the Web
Such impenetrable structures have led some to wonder whether Deutsche’s unusual loans to Trump and its Russian money-laundering schemes were connected.
For much of the past year, the embattled secretary of state sequestered himself from the rank and file, micromanaging huge swaths of U.S. foreign policy through an impenetrable group of top advisers and making few public appearances.
But travel up the turnpike to Boston, with its working-class tensions and impenetrable Brahmin entitlement, and even a mundane encounter could leave a permanent mark.
Then Lomachenko will try to cap his year by breaking through Rigondeaux's often impenetrable defense.
John Gibson was an impenetrable fortress, swatting away every puck that approached.
Before crude nuclear weapons get into the hands of outright terrorists, the acceptable nuclear powers must have practically impenetrable defenses against their delivery.
Then the retail storm that is buffeting malls across the U.S. slammed into this once impenetrable shopping fortress.
Louisiana has proved nearly as impenetrable, with LSU signing 35 of the 60 top-10 in-state prospects in each recruiting class from 2012-2016.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'impenetrable.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of impenetrable
First Known Use: 15th centurySee Words from the same year
Synonymsimpassable (also impassible), impermeable, impervious, impregnable
Antonymsnegotiable, passable, penetrable, permeable
Related Wordsclose, compact, dense, thick, tight; compressed, condensed; sturdy, substantial, tough; firm, frozen, hard, solid, stiff; inflexible, rigid, unbending, unyielding
Near Antonymssoft, squishy; bendable, elastic, flexible, giving, malleable, pliable, yielding; absorbent, porous
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