Middle-aged
Pronunciation : Mid"dle-aged`
Part of Speech : a.
Definition : Defn: Being about the middle of the ordinary age of man; between 30 and 50 years old.
Source : Webster's Unabridged Dictionary, 1913
Merriam-Webster's Everyday Language Reference Set: Includes: The Merriam-Webster Dictionary, The Merriam-Webster Thesaurus, and The Merriam-Webster Vocabulary Builder