the Stone Age
: the oldest period in which human beings are known to have existed : the age during which humans made and used stone tools
It was a skill developed during the Stone Age.
Stone Age weapons
— often used figuratively
His political ideas are from the Stone Age. [=are from the distant past; are very out of date]
I'm still using a Stone Age computer. [=an outdated/obsolete computer]
compare ,
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Main Entry: ↑Stone Age
Useful english dictionary. 2012.