undistinguishable

C2+ Topic:Describing Qualities

US /ˌʌndɪˈstɪŋɡwɪʃəbəl/ UK /ˌʌndɪˈstɪŋɡwɪʃəbəl/ See IPA manual

adj

Meanings

1

adj
impossible to tell apart or perceive clearly; indistinguishable

The forgery was undistinguishable from the genuine signature.

Thesaurus

Synonyms

1 adj · impossible to tell apart or... indistinguishable imperceptible indiscernibleunidentifiable

Opposites

distinguishable discernible perceptible

Word family

Forms undistinguishably

Derived forms undistinguishably

Related forms distinguishable distinguish distinct

Etymology

From un- ('not') + distinguishable, from distinguish, from Latin distinguere ('to separate, mark off'), from dis- ('apart') + stinguere ('to prick, mark').

un- Old English distinguere Latin *steyg- Proto-Indo-European

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Topics

Describing Qualities Word Formation & Derivatives

# undistinguishable

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

## Meanings
1. impossible to tell apart or perceive clearly; indistinguishable

## Examples
- The forgery was undistinguishable from the genuine signature.

## Synonyms
- indistinguishable
- imperceptible
- indiscernible
- unidentifiable

## Antonyms
- distinguishable
- discernible
- perceptible

## Derived Forms
- undistinguishably

## Related Forms
- distinguishable
- distinguish
- distinct

## Roots and Affixes
- Root: un-
- Root: distinguere
- Root: *steyg-

## Etymology
From un- ('not') + distinguishable, from distinguish, from Latin distinguere ('to separate, mark off'), from dis- ('apart') + stinguere ('to prick, mark').

## AI Etymology
Undistinguishable is from un- ('not') + distinguishable, from distinguish, from Latin distinguere ('to separate, mark off'), from dis- ('apart') + stinguere ('to prick, mark'). Important recorded forms include un- (Old English), distinguere (Latin), and *steyg- (Proto-Indo-European). 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 impossible to tell apart or perceive clearly; indistinguishable. The wider family includes derived forms such as undistinguishably and related words such as distinguishable, distinguish, and distinct.

## Topics
- Describing Qualities
- Word Formation & Derivatives

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