Stone AgeStone Age
a period in human culture during which stone implements are used; specif., the time of the Paleolithic, Mesolithic, and Neolithic periods of the Old World: often used fig.: an outmoded business model right out of the Stone Age
- The earliest known period of human culture, characterized by the use of stone tools. See Usage Note at Three Age system.
- Slang An extremely backward or primitive era or state: back in the Stone Age of television broadcasting.
(comparative more stone-age, superlative most stone-age)
- Belonging in the Stone Age.