A person who lives or acts without restraint or commitment; someone who is casual, improvising, and unrestricted in their approach to life or work.
From 'freewheel' + agent suffix '-er'. Emerged in the 20th century as 'freewheel' shifted from a mechanical term to describe a loose, unstructured lifestyle or personality.
Jazz musicians and bohemian artists of the 20th century embodied the 'freewheeler' spirit—deliberately rejecting conventional structure in favor of improvisation, which became associated with both creative genius and unreliability depending on who was judging.
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