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Definition of Middle-aged
1. Adjective. Being roughly between 45 and 65 years old. 
Similar to: Old
Definition of Middle-aged
1. Adjective. of, or relating to middle age; neither old nor young ¹
¹ Source: wiktionary.com
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1. Adjective. Being roughly between 45 and 65 years old. 
1. Adjective. of, or relating to middle age; neither old nor young ¹
¹ Source: wiktionary.com