unmistakable
adjective B2- Unique, such that it cannot be mistaken for something else.
From the library
Lynde recognized its unmistakable ring.
And then suddenly, in the very dead of the night, there came a sound to my ears, clear, resonant, and unmistakable.
Upon this occasion an unmistakable sign from Madame Danglars intimated her desire to see Albert in her box directly the curtain fell on the second act, and neither the politeness nor good taste of Morcerf would permit his neglecting an invitation so unequivocally given.
Every choice of adjective, every subtle shift in cadence, bore the unmistakable fingerprint of her own deeply ingrained literary sensibilities.
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