Definitions for: Impenetrable


[adj] impossible to understand; "impenetrable jargon"
[adj] not admitting of penetration or passage into or through; "an impenetrable fortress"; "impenetrable rain forests"
[adj] permitting little if any light to pass through because of denseness of matter; "dense smoke"; "heavy fog"; "impenetrable gloom"



Webster (1913) Definition: Im*pen"e*tra*ble, a. [L. impenetrabilis; pref.
im- not + penetrabilis penetrable: cf. F.
imp['e]n['e]trable.]
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) 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.

Synonyms: dense, heavy, incomprehensible, thick, uncomprehensible

Antonyms: penetrable

 Try our:
Scrabble Word Finder

Scrabble Cheat

Words With Friends Cheat

Hanging With Friends Cheat

Scramble With Friends Cheat

Ruzzle Cheat



Related Resources:
animals begin with x
animal facts
animals starting with o