- Of or pertaining to Proteus; characteristic of Proteus. - Exceedingly variable; readily assuming different shapes or
forms; as, an amoeba is a protean animalcule.
Meaning of 'protean' (Princeton's WordNet)
1 . protean
[ s]
Meaning (1): - taking on different forms
Example in sentence:
eyes...of that baffling protean grey which is never twice the same