Firmly fixed
Secure and firmly fixed are semantically related. In some cases you can use "Secure" instead an adjective phrase "Firmly fixed".
Secure
Secure adjective - Having or showing great faith in oneself or one's abilities.
Firmly fixed and secure are semantically related. Sometimes you can use "Firmly fixed" instead an adjective "Secure".
Both terms in one sentence
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The seats are now firmly fixed to the floor, and the armrests on the seats can be pulled inward to secure the crewmembers in place.
Source: Franchise / Star Trek
Cite this Source
Secure and Firmly fixed. (2016). Retrieved 2026, August 10, from https://thesaurus.plus/related/firmly_fixed/secure
Firmly fixed & Secure. N.p., 2016. Web. 10 Aug. 2026. <https://thesaurus.plus/related/firmly_fixed/secure>.
Secure or Firmly fixed. 2016. Accessed August 10, 2026. https://thesaurus.plus/related/firmly_fixed/secure.
Google Ngram Viewer shows how "firmly fixed" and "secure" have occurred on timeline