- Nebulous is defined as something that has to do with a cloud of gas or dust in space.
An example of nebulous is a star cluster.
- The definition of nebulous is someone or something that is vague or unclear.
An example of nebulous is a plan that doesn't describe the intended outcome.
This star cluster is an example of something that is nebulous.
- of or like a nebula or nebulae
- Rare cloudy; misty
- unclear; vague; indefinite
Origin of nebulousMiddle English nebulus ; from Classical Latin nebulosus
- Cloudy, misty, or hazy.
- Lacking definite form or limits; vague: nebulous assurances of future cooperation.
- Of, relating to, or characteristic of a nebula.
Origin of nebulousMiddle English, from Latin nebulōsus, from nebula, cloud; see nebh- in Indo-European roots.
(comparative more nebulous, superlative most nebulous)
From Middle English, from Latin nebulÅsus (â€œfull of mist, foggy, cloudyâ€), from nebula (â€œmist, vapour, cloudâ€), from Proto-Indo-European *nÃ©bÊ°os (â€œcloud, vapor, fog, moist, skyâ€). Cognate with Ancient Greek Î½ÎÏ†Î¿Ï‚ (nÃ©phos, â€œcloudâ€), Old High German nebul (â€œcloud, fogâ€) (German Nebel), Old English nifol, neowol (â€œdark, gloomy, obscure, precipitous, proneâ€). More at neveling, nuel.