Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

EXAMPLES FROM THE WEB FOR UNPIERCEABLE

Estelle is a courageous woman and discreet with the unpierceable reticence of spontaneity.

The outer darkness of remorse and regret was round him, not to be illuminated, but unpierceable and of necessity so.

Here the unpierceable walls were washed every morning by an automatic sluice.

RELATED WORDS AND SYNONYMS FOR UNPIERCEABLE

Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.