Dictionary.com
Thesaurus.com

Grimaldian

American  
[gri-mahl-dee-uhn, -mawl-] / grɪˈmɑl di ən, -ˈmɔl- /

adjective

  1. of, relating to, or characteristic of an Upper Paleolithic cultural epoch in northwestern Italy.


Etymology

Origin of Grimaldian

1930–35; after the Grimaldi caves, Italy + -an