asymmetric

/EY0 S AH0 M EH1 T R IH0 K/
adjective
  1. 1

    Not symmetric.

    โ€œan asymmetric shapeโ€

  2. 2

    Not involving a mutual exchange of keys between the sender and receiver.

  3. 3

    Of a relation R on a set S: having the property that for any two elements of S (not necessarily distinct), at least one is not related to the other via R.

Source: https://en.wiktionary.org/wiki/asymmetric