nondisclosure
noun
non·dis·clo·sure ˌnän-dis-ˈklō-zhər
: failure or refusal to make something known : lack of disclosure
—often used before another noun
nondisclosure of a known problem with the property
… employers must take care not to create overbroad confidentiality and nondisclosure provisions …—
David T. Harmon and Mariya Gonor
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Merriam-Webster unabridged



