Reliable
Reliable adjective - Worthy of one's trust.
Usage example: I need a reliable car that's not going to break down constantly
Sure is a synonym for reliable in trustworthy topic. In some cases you can use "Sure" instead an adjective "Reliable", when it comes to topics like sturdy, dependable, unfailing. popular alternative
Sure
Sure adjective - Not likely to fail.
Usage example: a sure cure for the winter blues—a week in the Bahamas
Reliable is a synonym for sure in character trait topic. You can use "Reliable" instead an adjective "Sure", if it concerns topics such as sturdy, unfailing. popular alternative
Nearby Word: surely
Mutual synonyms
Both words in one sentence
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Apocalypse How: Somewhere between class 0 and class 5; as there's no reliable sources of information, neither the characters nor the reader ever find out for sure.
Source: Manga / Dragon Head - Sure, total abstinence is a more reliable way to avoid pregnancy and STDs than using a condom, but using protection is way better than nothing.
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Apparently, one of the most reliable ways to make sure that a specific person gets your message in a timely manner is to stuff it in a bottle and chuck it in the ocean.
Source: Message in a Bottle
Cite this Source
Sure and Reliable. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/reliable/sure
Reliable & Sure. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/reliable/sure>.
Sure or Reliable. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/reliable/sure.
Google Ngram Viewer shows how "reliable" and "sure" have occurred on timeline