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 property of being rare; rarity

n. The state or quality of being rare.

n. Thinness; tenuity; rarity: as, the rareness of air or vapor.

n. The state of being scarce, or of happening seldom; uncommonness; infrequeney.

n. Uncommon character or quality; especially, unusual excellence, fineness, or the like.

n. The state of being rare or underdone in cooking.

n. noteworthy scarcity

"In other words, the Board agreed with Judge Seeherman's view that "rareness" is the most important factor in the surname analysis."

scarcity    scarceness   

rarity   

cisco    aphasiology    mortalitie    philologer    nonproduction    valuelessness    stratigraphy    painlessness    unhealthiness    mythologist