Permanent
Mutual synonyms
Both words in one sentence
-
He handwaves why he hasn't used it before by admitting to Nemesis that to secure his rule over Termight he needed to keep the Terrans in permanent fear and give them an enemy to fight.
Source: Comic Book / Nemesis the Warlock - And with Venice's doubled number of trade routes, it's easy to keep enough city-states in a permanent alliance with you to secure a Diplomatic Victory, without ever having to spend all the boatloads of money you're making on gifts.
Source: Game Breaker / Civilization -
In both cases, the interfaces are very useful for getting into secure systems and data, but the drawbacks include nasty physical pain from security features designed to counter just such breaches, to the point where the users risked permanent damage, paralysis, or even death.
Source: Unusual User Interface
Cite this Source
Secure and Permanent. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/permanent/secure
Permanent & Secure. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/permanent/secure>.
Secure or Permanent. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/permanent/secure.
Google Ngram Viewer shows how "permanent" and "secure" have occurred on timeline