Not classified or not subject to classification.(adjective)
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Use "nonclassified" in a sentence
"From its inception, DARPA funded long-term nonclassified IT research in academia, even during several wars, to leverage all the best minds."
"In September 1971, Malek was put in charge of a White House effort to close down leaks to reporters of nonclassified material from the administration."
"Typically, new hires work on nonclassified items until their employers secure their clearances."