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- DictionaryIm·pen·e·tra·ble/imˈpenətrəb(ə)l/
adjective
- 1. impossible to pass through or enter: "a dark, impenetrable forest"
- 2. impossible to understand: "her expression was impenetrable"
impossible to see through or go through: Outside, the fog was thick and impenetrable. an impenetrable barrier. Synonyms. impermeable. impervious (SUBSTANCE) specialized. Compare. waterproof adjective. watertight (NO WATER) weatherproof adjective. Opposite. permeable formal. impossible to understand:
The meaning of IMPENETRABLE is incapable of being penetrated or pierced. How to use impenetrable in a sentence.
Impenetrable definition: not penetrable; that cannot be penetrated, pierced, entered, etc.. See examples of IMPENETRABLE used in a sentence.
impossible to see through or go through: Outside, the fog was thick and impenetrable. an impenetrable barrier. Synonyms. impermeable. impervious (SUBSTANCE) specialized. Compare. waterproof adjective. watertight (NO WATER) weatherproof adjective. Opposite. permeable formal. impossible to understand:
Impenetrable describes something that's impossible to get through. Whether it's a brick wall or a difficult reading passage, something impenetrable won't let you in.
Definition of impenetrable adjective in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
If you describe something such as a barrier or a forest as impenetrable, you mean that it is impossible or very difficult to get through.
adj. 1. Impossible to penetrate or enter: an impenetrable fortress. 2. Impossible to understand; incomprehensible: impenetrable jargon. 3. Impervious to sentiment or argument: an impenetrable heart. im·pen′e·tra·ble·ness n. im·pen′e·tra·bly adv.
impossible to see through or go through: impenetrable fog. (Definition of impenetrable from the Cambridge Learner's Dictionary © Cambridge University Press)
adjective. Impossible to penetrate or enter. An impenetrable fortress. American Heritage. That cannot be penetrated or passed through. An impenetrable jungle. Webster's New World. That cannot be solved or understood; unfathomable; inscrutable. Webster's New World. Impossible to understand; incomprehensible. Impenetrable jargon. American Heritage.
