Deadly
Deadly adjective - Likely to cause or capable of causing death.
Impregnable and deadly are semantically related. In some cases you can use "Impregnable" instead an adjective "Deadly".
Nearby Word: dead
Impregnable
Impregnable adjective - Incapable of being defeated, overcome, or subdued.
Deadly and impregnable are semantically related. Sometimes you can use "Deadly" instead an adjective "Impregnable".
Both words in one sentence
- Instead they plan to steal the prize, which is locked inside an impregnable vault: two burned chunks of an exploded star cruiser, one of which may hold the key to the wealth of an entire world.But the truth about the treasure is dangerous and deadly.
Cite this Source
Impregnable and Deadly. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/deadly/impregnable
Deadly & Impregnable. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/deadly/impregnable>.
Impregnable or Deadly. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/deadly/impregnable.
Google Ngram Viewer shows how "deadly" and "impregnable" have occurred on timeline