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

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adj. not varied; monotonous or homogeneous

Not varied; not altered; not diversified; unchanged.

adj. lacking variety

"The initial unvaried is good atrocious, teal chest, black torso, frazzled white as good as black lines."

constant   

humdrum    unfigured    profitless    undeviating    ever-varying