have no business doing something/to do something

have no business (doing something)

To have no legitimate reason, experience, or authority to do something. Mom, you had no business eavesdropping on my phone call like that! He has no business running this meeting—he has no idea what this project entails.
See also: business, have, no
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

have no business doing something/to do something

have no right to do something: You have no business being here.
See also: business, have, no, something, to
Farlex Partner Idioms Dictionary © Farlex 2017
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