Two words: *polymath* (”Renaissance man”) and the other: *Sprezzatura*: Learned Carelessness. : Does amazing thing: says, ”Ah, it was nothin”’.
”an easy facility in accomplishing difficult actions which hides the conscious effort that went into them”.
*Sprezzatura* has also been described ”as a form of defensive irony: the ability to disguise what one really desires, feels, thinks, and means or intends behind a mask of apparent reticence and nonchalance”.
The word has entered the English language; the Oxford English Dictionary defines it as ”studied carelessness”