Fixed
Fixed adjective - Not capable of changing or being changed.
Usage example: interest accrues at a fixed rate
Inflexible is a synonym for fixed in intent topic. In some cases you can use "Inflexible" instead an adjective "Fixed", when it comes to topics like constant, not subject to change. popular alternative
Inflexible
Mutual synonyms
Cite this Source
Inflexible and Fixed. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/fixed/inflexible
Fixed & Inflexible. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/fixed/inflexible>.
Inflexible or Fixed. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/fixed/inflexible.
Google Ngram Viewer shows how "fixed" and "inflexible" have occurred on timeline