Impregnable synonyms | phrases

Phrases with similar meaning for Impregnable

• well fortified

  invulnerable
• well defended

  invulnerable
• safe and sound
• water-resistant
• in safety
• out of danger
• well protected
• sitting pretty
• free from danger
• home-free
• true blue
• touch-and-go
• on collision course
• home free
• no way
• no-win
• not a prayer
• touch and go
• in safe hands
• risk-free
• beyond question

  irrefutable
• beyond doubt

  irrefutable
• without loopholes

  flawless
• un-come-at-able
• un-get-at-able
• well-built
• stout-hearted
• strong-willed
• strong-minded
• zip-locked
• true-blue
• buttoned-up
• no-way
• safe as houses
• solid as a rock
• having down pat
• in the bag
• on ice
• salted away
• sure thing
• all-powerful
• rough go
• tall order
• tough proposition
• able to hold water
• above criticism
• free from harm
• well built
• low-risk
• beyond dispute