Standard Lemma guide

nebulous

adj · 6 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • Received-Pronunciation, US: /ˈnɛbjʊləs/
  • US: Recorded audio is listed in the source snapshot.
  • General-American: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: N EH1 B Y AH0 L AH0 S Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

In the form of a cloud or haze; hazy.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Vague or ill-defined.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adj

Meaning 3

Relating to a nebula or nebulae.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

adjective

Meaning 4

of or relating to or resembling a nebula

Definition source: Princeton WordNet 3.0

Examples

  • the nebular hypothesis of the origin of the solar system

Meaning relationships

Synonyms: nebular

Antonyms: none provided

5

adjective satellite

Meaning 5

lacking definition or definite content- Jane Austen

Definition source: Princeton WordNet 3.0

Examples

  • nebulous reasons
  • unfixed as were her general notions of what men ought to be

Meaning relationships

Synonyms: unfixed

Antonyms: none provided

6

adjective satellite

Meaning 6

lacking definite form or limits- H.T.Moore

Definition source: Princeton WordNet 3.0

Examples

  • gropes among cloudy issues toward a feeble conclusion
  • nebulous distinction between pride and conceit

Meaning relationships

Synonyms: cloudy, nebulose

Antonyms: none provided

History

Etymology

Inherited from Middle English nebulous, from Middle French nebuleus, from Latin nebulōsus (“full of mist, foggy, cloudy”), from nebula (“mist, vapour, cloud”), from Proto-Indo-European *nébhos (“cloud, vapor, fog, moist, sky”). By surface analysis, nebula + -ous. More at neveling, nuel. Cognates * Ancient Greek νέφος (néphos, “cloud”) * German Nebel ** Old High German nebul (“cloud, fog”) * Old English nifol, neowol (“dark, gloomy, obscure, precipitous, prone”)

Across languages

Translations

43 source translations are retained for this English entry.

  • Bulgarian: мъглив (mǎgliv) — in the form of a cloud
  • Bulgarian: облачен (oblačen) — in the form of a cloud
  • Catalan: nebulós — in the form of a cloud
  • Estonian: udune — in the form of a cloud
  • Estonian: hägune — in the form of a cloud
  • Finnish: sumumainen — in the form of a cloud
  • Georgian: ნისლოვანი (nislovani) — in the form of a cloud
  • German: neblig — in the form of a cloud
  • German: nebelig — in the form of a cloud
  • Italian: nebuloso — in the form of a cloud
  • Portuguese: nebuloso — in the form of a cloud
  • Romanian: nebulos — in the form of a cloud
  • Russian: о́блачный (óblačnyj) — in the form of a cloud
  • Russian: тума́нный (tumánnyj) — in the form of a cloud
  • Spanish: nebuloso — in the form of a cloud
  • Bulgarian: неясен (nejasen) — ill-defined
  • Bulgarian: смътен (smǎten) — ill-defined
  • Catalan: nebulós — ill-defined
  • Esperanto: nebula — ill-defined
  • Estonian: udune — ill-defined
  • Finnish: epämääräinen — ill-defined
  • French: nébuleux — ill-defined
  • Georgian: ბუნდოვანი (bundovani) — ill-defined
  • Georgian: გაურკვეველი (gaurḳveveli) — ill-defined
  • Georgian: არამკაფიო (aramḳapio) — ill-defined
  • Georgian: დაბინდული (dabinduli) — ill-defined
  • German: nebulös — ill-defined
  • German: unklar — ill-defined
  • German: verworren — ill-defined
  • German: nebelhaft — ill-defined
  • Italian: vago — ill-defined
  • Norwegian Bokmål: tåkete — ill-defined
  • Norwegian Bokmål: uklar — ill-defined
  • Romanian: nebulos — ill-defined
  • Russian: неопределённый (neopredeljónnyj) — ill-defined
  • Russian: неотчётливый (neotčótlivyj) — ill-defined
  • Russian: нея́сный (nejásnyj) — ill-defined
  • Russian: сму́тный (smútnyj) — ill-defined
  • Russian: расплы́вчатый (rasplývčatyj) — ill-defined
  • Russian: тума́нный (tumánnyj) — ill-defined
  • Spanish: nebuloso — ill-defined
  • Polish: mgławicowy — relating to nebulae
  • Spanish: nebular — relating to nebulae