known unknown
known unknown · known unknowns
An uncertainty of known magnitude, consequence, structure, and probability characteristicsAn uncertainty of known magnitude, consequence, structure, and probability characteristics; something that we know that we don't know.
Meaning
1 sensesAn uncertainty of known magnitude, consequence, structure, and probability characteristics; something that we know that we don't know.
Origin
Popularized by Donald Rumsfeld in 2002, though used much earlier.Popularized by Donald Rumsfeld in 2002, though used much earlier.
Wiktionary, CC BY-SA 4.0 · source
Forms
plural: known unknowns| Singular | known unknown |
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| Plural | known unknowns |
regular