unidentified

C2+ Topic:Describing Qualities

US /ˌʌnaɪˈdɛntəˌfaɪd/ UK /ˌʌnaɪˈdɛntɪfaɪd/ See IPA manual

adj

Meanings

1

adj
not recognized or named

An unidentified caller left a cryptic message.

Thesaurus

Synonyms

1 adj · not recognized or named unknown unrecognized anonymous unnamed mysterious nameless

Opposites

identified recognized known named

Word family

Related forms identify identified identity identification

Etymology

From un- ('not') + identified, past participle of identify, from Medieval Latin identificare, from Latin identitas ('sameness', from idem 'the same') + facere ('to make').

un- Old English identitas Late Latin idem Latin

View etymology graph ->

Topics

Describing Qualities Word Formation & Derivatives

# unidentified

**Type:** Word
**Level:** C2+
**Part of speech:** adj
**IPA (US):** ˌʌnaɪˈdɛntəˌfaɪd
**IPA (UK):** ˌʌnaɪˈdɛntɪfaɪd

## Meanings
1. not recognized or named

## Examples
- An unidentified caller left a cryptic message.

## Synonyms
- unknown
- unrecognized
- anonymous
- unnamed
- mysterious
- nameless

## Antonyms
- identified
- recognized
- known
- named

## Related Forms
- identify
- identified
- identity
- identification

## Roots and Affixes
- Root: un-
- Root: identitas
- Root: idem

## Etymology
From un- ('not') + identified, past participle of identify, from Medieval Latin identificare, from Latin identitas ('sameness', from idem 'the same') + facere ('to make').

## AI Etymology
Unidentified is from un- ('not') + identified, past participle of identify, from Medieval Latin identificare, from Latin identitas ('sameness', from idem 'the same') + facere ('to make'). Important recorded forms include un- (Old English), identitas (Late Latin), and idem (Latin). Morphologically, the un- element marks negation, reversal, removal, or deprivation, while the base supplies the action, quality, or state being denied or undone. The modern sense is largely compositional, with the historical elements narrowing into a stable English lexical item. In current use it covers not recognized or named. The wider family includes related words such as identify, identified, identity, and identification.

## Topics
- Describing Qualities
- Word Formation & Derivatives

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