Top-secret
Top-secret adjective - The highest official level of classification of documents.
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Synonyms for Top-secret
Unknown and top-secret are semantically related. In some cases you can use "Unknown" instead an adjective phrase "Top-secret".
Unknown
Unknown adjective - Happening or existing without one's knowledge.
Top-secret and unknown are semantically related. Sometimes you can use "Top-secret" instead an adjective "Unknown".
Nearby Words: unknowable, unknowing
Mutual synonyms
Related pairs
- obscure and top-secret
- obscure and unknown
- recondite and top-secret
- recondite and unknown
- dark and top-secret
- dark and unknown
- secret and top-secret
- secret and unknown
- hidden and top-secret
- hidden and unknown
- underground and top-secret
- underground and unknown
- mysterious and top-secret
- mysterious and unknown
Both words in one sentence
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In "A Colder War" by Charles Stross, Stephen Jay Gould is presenting some recent paleozoic fossils and artifacts to members of a top-secret government agency that, unknown to him, deals in Eldritch Abominations straight out of H.P.
Source: Precursors -
The handful of survivors from the crash, bloody and disoriented, are then insistently pursued in the darkness by unknown predators that are part of the government's top-secret Mesa Experiment.A sequel, Area 407: Part II is in production.
Source: Film / Tape 407
Cite this Source
Unknown and Top-secret. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/top-secret/unknown
Top-secret & Unknown. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/top-secret/unknown>.
Unknown or Top-secret. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/top-secret/unknown.
