Reliable
Reliable adjective - Worthy of one's trust.
Usage example: I need a reliable car that's not going to break down constantly
Valid is a synonym for reliable in accurate topic. In some cases you can use "Valid" instead an adjective "Reliable", when it comes to topics like creditable, dependable.
Valid
Valid adjective - According to the rules of logic.
Reliable is a synonym for valid in accurate topic. You can use "Reliable" instead an adjective "Valid", if it concerns topics such as creditable, cogent.
Nearby Words: validity, validation
Mutual synonyms
Both words in one sentence
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Most of Sonic's taunting lately (at least in the games) is in the form of reminding Eggman how reliable his schemes tend to be (that is, not very reliable at all), which, while still very smug, is also completely valid.
Source: Smug Super -
Briefcase Full of Money: Nearly all transactions in the developed Sixth World are electronic, so the literal version of this trope is almost nonexistent outside places that don't have reliable Matrix access or recognize the nuyen as valid currency.
Source: Tabletop Game / Shadowrun -
Victory by Endurance: A valid tactic when a lot of robots simply weren't reliable enough to take a few bumps without breaking down- no matter how impressive your weapon is, if your drive system breaks down you're out.
Source: Series / Robot Wars
Cite this Source
Valid and Reliable. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/reliable/valid
Reliable & Valid. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/reliable/valid>.
Valid or Reliable. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/reliable/valid.
Google Ngram Viewer shows how "reliable" and "valid" have occurred on timeline