/ ˈɜːθli; NAmE ˈɜːrθ-/ adjective [ usually before noun ]
1.
( literary ) connected with life on earth and not with any spiritual life :
the sorrows of this earthly life
2.
(often used in questions and negatives for emphasis) possible :
There's no earthly reason why you shouldn't go.
What earthly difference is my opinion going to make?
He didn't have an earthly chance of getting the job.