IMPENETRABLE

impenetrable

(adjective) impossible to understand; “impenetrable jargon”

impenetrable

(adjective) not admitting of penetration or passage into or through; “an impenetrable fortress”; “impenetrable rain forests”

dense, heavy, impenetrable

(adjective) permitting little if any light to pass through because of denseness of matter; “dense smoke”; “heavy fog”; “impenetrable gloom”

Source: WordNet® 3.1


Etymology

Adjective

impenetrable (not comparable)

Not penetrable.

(figuratively) Incomprehensible; fathomless; inscrutable.

Opaque; obscure; not translucent or transparent.

Synonyms

• (not penetrable): impregnable, unfathomable

• (incomprehensible): See also incomprehensible

Antonyms

• (not penetrable): penetrable, pregnable, fathomable

• (incomprehensible): See also comprehensible

Source: Wiktionary


Im*pen"e*tra*ble, a. Etym: [L. impenetrabilis; pref. im- not + penetrabilis penetrable: cf. F. impénétrable.]

1. Incapable of being penetrated or pierced; not admitting the passage of other bodies; not to be entered; impervious; as, an impenetrable shield. Highest woods impenetrable To star or sunlight. Milton.

2. (Physics)

Definition: Having the property of preventing any other substance from occupying the same space at the same time.

3. Inaccessible, as to knowledge, reason, sympathy, etc.; unimpressible; not to be moved by arguments or motives; as, an impenetrable mind, or heart. They will be credulous in all affairs of life, but impenetrable by a sermon of the gospel. Jer. Taylor.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

5 June 2025

UNDERLAY

(verb) raise or support (the level of printing) by inserting a piece of paper or cardboard under the type; “underlay the plate”


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Coffee Trivia

Brazil is the largest coffee producer in the world. Each year Brazil exports more than 44 million bags of coffee. Vietnam follows at exporting over 27 million bags each year.

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