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

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adj. Tending to detract or draw.

adj. Tending to lower in estimation; depreciative.

adj. Tending to detractor draw.

adj. Tending to lower in estimation; depreciative.

Having the quality or power of drawing or taking away.

Seeking or tending to lessen repute or estimation; depreciative; defamatory.

adj. causing to decrease in importance or value

"This, however, is not the only occasion in which I have seen the detractive disposition of that young lady, who, with all her simplicity of manners and great accomplishments, is, you will perceive, just like ourselves, rustic as she doubtless thinks our breeding has been."

decreasing   

depreciative