Unknowns

name, noun

name, noun ·2 syllables ·Rare ·Advanced level

Definitions

Noun
  1. 1
    plural of unknown form-of, plural
Proper Noun
  1. 1
    Those US military personnel who have died in service, usually in war, without proper burial. US, plural, plural-only

Synonyms

All synonyms
undiscoveredunidentifiedunsunganonymouslittle knownobscure

Example

More examples

"There are known knowns; there are things we know we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns – the ones we don't know we don't know."

Related phrases

unknown soldierunknown warrior

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.