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

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adj. Without blinking: an unblinking stare.

adj. Without visible emotion: an unblinking answer to a very personal question.

adj. Fearless in facing reality: engaged in unblinking self-analysis.

adj. Not blinking

adj. not shrinking from danger

adj. showing no visible emotion

"This trait should not be confused with blind - also "unblinking" -- ambition."

fearless    unafraid    unemotional   

unwinking    expressionless    unsmiling    beady    bloodshot