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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"
The meaning of IMPENETRABLE is incapable of being penetrated or pierced. How to use impenetrable 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 definition: not penetrable; that cannot be penetrated, pierced, entered, etc.. See examples of IMPENETRABLE used in a sentence.
Synonyms for IMPENETRABLE: dense, impervious, impassable, thick, impermeable, close, impregnable, sturdy; Antonyms of IMPENETRABLE: permeable, soft, negotiable, passable, penetrable, flexible, elastic, giving.
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.
impenetrable. adjective. us / ɪmˈpen.ə.trə.b ə l / uk / ɪmˈpen.ɪ.trə.b ə l /. Add to word list. impossible to see through or go through: Outside, the fog was thick and impenetrable. an impenetrable barrier. Synonyms. impermeable.
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.
