Mysterious
Mysterious adjective - Having an import not apparent to the senses nor obvious to the intelligence; beyond ordinary understanding.
Usage example: mysterious symbols
Secret is a synonym for mysterious in property topic. In some cases you can use "Secret" instead the word "Mysterious" as an adjective or a noun, when it comes to topics like arcane, strange. popular alternative
Nearby Words: mystery, mysteriously
Secret
Secret adjective - Having an import not apparent to the senses nor obvious to the intelligence; beyond ordinary understanding.
Usage example: the secret learning of the ancients
Mysterious is a synonym for secret in cryptic topic. You can use "Mysterious" instead an adjective "Secret", if it concerns topics such as hidden. popular alternative
Mutual synonyms
Related pairs
Both words in one sentence
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Consider how many secret and mysterious items can be found inside their respective houses.
Source: Comicbook / House of Mystery - Despite being in mysterious competition with one another, the members of the SOS-dan in Haruhi Suzumiya, besides Haruhi herself, fiercely guard each other's secret origins.
Source: Secret Keeper - LIS_DEAD is seemingly an inversion; it's encrypted and secret to nobody except for a certain mysterious 'Him'
Source: Public Secret Message
Cite this Source
Secret and Mysterious. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/mysterious/secret
Mysterious & Secret. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/mysterious/secret>.
Secret or Mysterious. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/mysterious/secret.
Google Ngram Viewer shows how "mysterious" and "secret" have occurred on timeline