Impenetrable

Synonyms of impenetrable

• inaccessible
• unyielding
• impervious

Antonyms of impenetrable

• accessible
• permeable
• penetrable

Collocations of impenetrable

impenetrable fortress

Frequency: 70 %

The castle was surrounded by an impenetrable fortress.

impenetrable defense

Frequency: 60 %

The team's impenetrable defense led them to victory.

impenetrable barrier

Frequency: 50 %

The thick vines formed an impenetrable barrier around the garden.

impenetrable mystery

Frequency: 45 %

The ancient ruins held an impenetrable mystery waiting to be unraveled.

impenetrable darkness

Frequency: 40 %

The cave was filled with an impenetrable darkness that made it impossible to see.

Idiomatic Expressions for impenetrable

• Phrase: impenetrable defense
  Meaning: a defense that is extremely difficult to breach or overcome
  Usage: The team's goalkeeper put up an impenetrable defense, preventing the opposing team from scoring any goals.