Reliable
Reliable adjective - Worthy of one's trust.
Usage example: I need a reliable car that's not going to break down constantly
Steadfast is a synonym for reliable in trustworthy topic. In some cases you can use "Steadfast" instead an adjective "Reliable", when it comes to topics like character trait.
Steadfast
Steadfast adjective - Firm in one's allegiance to someone or something.
Usage example: a steadfast supporter of women's rights
Reliable is a synonym for steadfast in loyal topic. You can use "Reliable" instead an adjective "Steadfast", if it concerns topics such as character trait.
Nearby Words: steadfastness, steadfastly
Mutual synonyms
Both words in one sentence
- Chuck, the best athlete at Sandy Harbor elementary, and a steadfast and reliable friend.
Source: Literature / T*A*C*K - From Scrubs: Carla, the steadfast, cool-headed, keen-eyed, ever-competent, always-on-top-of-things head nurse, is the most reliable employee at Sacred Heart.
Source: The Reliable One - After a few months of dealing with the zombie apocalypse, being forced to work together with others to survive, and Merle's absence, he has become a much nicer (if still gruff and awkward), steadfast, reliable, useful, and loyal member of the group.
Cite this Source
Steadfast and Reliable. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/reliable/steadfast
Reliable & Steadfast. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/reliable/steadfast>.
Steadfast or Reliable. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/reliable/steadfast.
Google Ngram Viewer shows how "reliable" and "steadfast" have occurred on timeline