noun
Usage: often attributive see: humble
Date: 14th century
any of a family (Chamaeleontidae) of chiefly arboreal Old World lizards with prehensile tail, independently movable eyeballs, and unusual ability to change the color of the skin,
2. a person given to often expedient or facile change in ideas or character, one that is subject to quick or frequent change especially in appearance, American chameleon , chameleonic adjective chameleonlike adjective