impenetrable

Crowded is a related term of impenetrable.

As adjectives the difference between crowded and impenetrable

is that crowded is containing too many of something; teeming while impenetrable is impenetrable.

As a verb crowded

is (crowd).

Complex is a related term of impenetrable.

As adjectives the difference between complex and impenetrable

is that complex is made up of multiple parts; composite; not simple while impenetrable is impenetrable.

As a noun complex

is a problem.

As a verb complex

is (chemistry|intransitive) to form a complex with another substance.

Compact is a related term of impenetrable.

As adjectives the difference between compact and impenetrable

is that compact is closely packed, ie packing much in a small space while impenetrable is impenetrable.

As a noun compact

is an agreement or contract or compact can be a small, slim folding case, often featuring a mirror, powder and a powderpuff; that fits into a woman's purse or handbag, or that slips into ones pocket.

As a verb compact

is to make more dense; to compress.

Unintelligible is a related term of impenetrable.

As adjectives the difference between unintelligible and impenetrable

is that unintelligible is not intelligible; unable to be understood while impenetrable is impenetrable.

Confusing is a related term of impenetrable.

As adjectives the difference between confusing and impenetrable

is that confusing is difficult to understand; not clear as lacking order, chaotic etc while impenetrable is impenetrable.

As a verb confusing

is .

Compressed is a related term of impenetrable.

As adjectives the difference between compressed and impenetrable

is that compressed is pressed tightly together while impenetrable is impenetrable.

As a verb compressed

is (compress).

Impenetrable is a synonym of inviolable.

As adjectives the difference between impenetrable and inviolable

is that impenetrable is impenetrable while inviolable is not violable; not to be infringed.

Hard is a synonym of impenetrable.

As a noun hard

is stove, heater; an enclosed space in which fuel (usually wood) is burned to provide heating, usually for cooking.

As an adjective impenetrable is

impenetrable.

Impenetrable is a related term of cloudy.

As adjectives the difference between impenetrable and cloudy

is that impenetrable is impenetrable while cloudy is covered with or characterised by clouds; overcast.

Impenetrable is a related term of supernatural.

As adjectives the difference between impenetrable and supernatural

is that impenetrable is impenetrable while supernatural is above nature; that which is beyond or added to nature, often so considered because it is given by a deity or some force beyond that which humans are born with in roman catholic theology, is considered to be a supernatural addition to human nature.

As a noun supernatural is

(countable) a supernatural being.