Secret
Secret adjective - Undertaken or done so as to escape being observed or known by others.
Undeclared and secret are semantically related. In some cases you can use "Undeclared" instead an adjective "Secret".
Undeclared
Undeclared adjective - Not announced or openly acknowledged.
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Synonyms for Undeclared
Secret and undeclared are semantically related. Sometimes you can use "Secret" instead an adjective "Undeclared".
Mutual synonyms
Cite this Source
Undeclared and Secret. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/secret/undeclared
Secret & Undeclared. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/secret/undeclared>.
Undeclared or Secret. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/secret/undeclared.
Google Ngram Viewer shows how "secret" and "undeclared" have occurred on timeline