inverse
adjective [ only before noun ]
uk/ɪnˈvɜːs/ uschanging in the opposite way in relation to something else, especially an amount:
an inverse relationship between sth and sth There is an inverse relationship between interest rates and bond prices.
in inverse proportion to sth The amount of business activity is in inverse proportion to the amount of government control.
inverse
noun [ S ]
formal uk/ɪnˈvɜːs/ usthe opposite:
the inverse of sth The current crisis is the exact inverse of the boom we experienced a few years ago.
The Earnings/Price ratio is the inverse of the Price/Earnings ratio.