This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. The quality or condition of being nebulous.

n. Astronomy A nebula or a nebulalike object.

n. Astronomy A mass of material constituting a nebula.

n. the characteristic of being nebulous; cloudiness

n. The state or quality of being nebulous; cloudiness; haziness; mistiness; nebulousness.

n.

n. The stuff of which a nebula is formed.

n. A nebula.

n. The state of being nebulous or cloudy; cloudiness; haziness; the essential character of a nebula.

n. The faint misty appearance surrounding certain stars; an ill-defined nebula without local condensation; also, a nebula in general.

"As a matter of fact, her thoughts were always fixed on the artistic, social, and dramatic aspects of life, with unfortunately a kind of nebulosity of conception which permitted no condensation into anything definite or concrete."

nebular    nebula    nebulous   

cloudiness    haziness    mistiness    nebulousness    nebula   

desultoriness    dubiousness    imprecision    changefulness    photochemistry