not one whit

not (in) the smallest amount or degree

The Anderton Lift, constructed in 1875 and reconstructed in 1908, on the Weaver Canal was, indeed, most spectacular --; and still is --; but not one whit more ingenious than the lift at Foxton.  BNCI

And, remarkably, it changed her personality not one whit.  BNCI

But he conducts himself in all situations with a dignity not one whit lessened by his shortness.  BNCI

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