Simple past tense and past participle of withhold.(verb)
That one has withheld; kept from the possession or knowledge of another.(adjective)
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Use "withheld" in a sentence
"Apparently there are video tapes, but they -- and the police report -- have been withheld from the press."
"It withheld from the American public evidence of the Iranian regime's continuation of terrorist activities and other actions contrary to US national security interests."
"We find that the claim is based on dubious assumptions, cherry-picking data, and mathematical legerdemain which is inexplicably being withheld from the public."