middle-aged
Word family
- middle agenounB1
- middle-agednessnounC2
Synonym discussion
Sense: adjective/1
Middle-aged, elderly, senior, and mature all describe stages or qualities of life, but they map to very different age ranges. Middle-aged refers specifically to the years roughly between 45 and 65 — past youth but not yet old. Elderly applies to a much later stage, generally 75 and above, and often implies physical frailty. Senior is a polite or official term for older people, usually past retirement age (65+), and is common in phrases like senior citizen or senior discount. Mature does not directly indicate age; it describes emotional or intellectual development and can be used at any age, though it is often a gentler way to refer to older people. For example: 'A middle-aged manager hired a senior accountant who was nearly 70.' Here middle-aged (about 50) and senior (past 65) describe different people in different life stages.
Common collocations
Etymology
A compound of 'middle' (from Old English middel, meaning 'the central part') and 'aged' (from 'age', which came through Old French aage from Latin aetatem, meaning 'period of life'). The word first appeared in English around the late 1300s to describe the period of life between youth and old age.