What is another word for old as the hills?
Pronunciation: [ˈə͡ʊld az ðə hˈɪlz] (IPA) 
"Old as the hills" is a popular idiom used to describe something as ancient or very old. However, there are many other synonyms one can use instead of this phrase. For instance, one could use the expression "antique" to refer to something that is very-old but still of value. Another synonym for old could be "ancient," which could be used to refer to something that dates back to a very distant past. "Hoary" and "primeval" are two more words that could be used in place of "old as the hills" to describe something that is very old or ancient. Overall, there are plenty of words that could be substituted for this popular idiom to better describe the age of something.
