Paleolithic

adjective2

1. •
   Of or referring to the Old Stone Age (the Paleolithic period or Paleolithic age).

   • We find material evidences of magical practices in the European caves of the Palaeolithic age[.] — 1936
2. •
   Antiquated, antediluvian.

   • Stacked up against ChatGPT’s ability to instantly transform any image into a Studio Ghibli cartoon, Instagram’s photo filters are practically Paleolithic. — 2025