with one's eyes closed

• with one's eyes shut

with one's eyes closed

1. (figuratively) With very little effort.

   Synonyms: hands down, one-handed, standing on one's head, with one hand tied behind one's back

   Is she good on the piano? Brother, she can play Beethoven with her eyes closed.

• with one's eyes open

• “with one's eyes closed”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.
• “with your eyes closed shut”, in Cambridge English Dictionary, Cambridge, Cambridgeshire: Cambridge University Press, 1999–present.
• “with one's eyes shut”, in Collins English Dictionary.