The quality of being performed or achieved without difficulty or strain; ease and grace.
From effortless (effort + -less) + -ness suffix. 'Effortless' emerged in the 18th century as the preferred way to describe ease, with -ness converting it to an abstract noun.
Paradoxically, achieving effortlessness requires tremendous effort—think of a gymnast or musician who makes hard things look easy; their 'effortlessness' is the result of thousands of hours of practice.
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