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

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adj. Impossible to mistake or misinterpret; obvious: unmistakable signs of illness.

adj. unique, such that it cannot be mistaken for something else.

adj. Incapable of being mistaken or misunderstood; clear; plain; obvious; evident.

That cannot be mistaken or misunderstood; clear; evident. Also unmistakeable.

Synonyms Palpable, manifest, obvious, patent, unequivocal, unambiguous, decided.

adj. clearly evident to the mind

adj. clearly revealed to the mind or the senses or judgment

"You would have some difficulty in recognising him, though he bears, like the rest of us, what you call the unmistakable Landale stamp."

clear    obvious   

clear    plain    obvious    evident   

breakable    unbreakable    unshakable    unshakeable   

definite    faint    distinctive    sudden    ominous    overwhelm    momentary    indescribable    obvious    startle