polythetic

/P AA1 L AH0 TH EH1 T IH0 K/
adjective
  1. 1

    (of a class of things) Having many, but not all properties in common.

    โ€œA polythetic taxon is one where the constituent organisms share a large number of characteristics.โ€

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