Synonyms for impenetrable | Synonym.com

Synonyms and antonyms for impenetrable

1. impenetrable (adj.)

not admitting of penetration or passage into or through

Synonyms: Antonyms:

2. impenetrable (adj.)

impossible to understand

Synonyms: Antonyms:

3. impenetrable (adj.)

permitting little if any light to pass through because of denseness of matter

Synonyms: Antonyms: