impregnable
impregnable adj
Fr.
- Impenetrable; imperceptible; [fig.] invisible; hidden; not seeable; not revealed; [metaphor] puzzling; unclear; incomprehensible.
- Unassailable; inviolable; intact; not reducible; [fig.] divine; sacrosanct; eternal; everlasting.
- Invincible; incorruptible; [fig.] everlasting; not really subject to death.
- Not subject; not subservient; not amenable; not yielding; not succumbing; not susceptible.