Definition of au naturel in US English:

au naturel

adjective

  • 1predicative With no elaborate treatment, dressing, or preparation.

    ‘the cheese is delicious whether au naturel or seasoned’
    • ‘They were not topped with anything but were enjoyed au naturel.’
    1. 1.1humorous Naked.

Origin

French, literally ‘in the natural (state)’.

Pronunciation

au naturel

/ˌō ˌnaCHəˈrel//ˌoʊ ˌnætʃəˈrɛl/