nebulous.
In the form of a cloud or haze; hazy.
Meaning & usage
In the form of a cloud or haze; hazy.
Vague or ill-defined.
Relating to a nebula or nebulae.
Where this word comes from
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”)
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.