reversed
fun <T> Comparator<T>.reversed(): Comparator<T>
Returns a comparator that imposes the reverse ordering of this comparator.
import kotlin.test.*
fun main(args: Array<String>) {
//sampleStart
val list = listOf("aa", "b", "bb", "a")
val lengthThenString = compareBy<String> { it.length }.thenBy { it }
val sorted = list.sortedWith(lengthThenString)
println(sorted) // [a, b, aa, bb]
val sortedReversed = list.sortedWith(lengthThenString.reversed())
println(sortedReversed) // [bb, aa, b, a]
//sampleEnd
}