Aged vs Elderly vs Mature vs Senior vs Too old

When to use each in English, with meaning, register, and examples.

Aged

Top 3,000 (common)B1

Elderly

Top 2,000 (common)B2

Mature

Top 2,000 (common)C1adjective

Senior

Top 2,000 (common)B2adjective

Too old

Top 2,000 (common)
 AgedElderlyMatureSeniorToo old
Pronunciation🇬🇧 /["/eɪdʒd/","/ˈeɪdʒɪd/"]/🇺🇸 /["/eɪdʒd/","/ˈeɪdʒɪd/"]/🇬🇧 /["/ˈeldəli/"]/🇺🇸 /["/ˈeldərli/"]/🇬🇧 //məˈtjʊə//🇺🇸 //məˈtʃʊr//🇬🇧 /["/ˈsiːniə(r)/"]/🇺🇸 /["/ˈsiːniər/"]/🇬🇧 //tuː oʊld//🇺🇸 //tuː oʊld//
MeaningHaving lived for a long time; old.Older people, usually over 65 years old.Fully grown or developed.An older person, often retired.Not young anymore; having lived a long time.
ExampleThey have two children aged six and nine.an **elderly man/woman/lady**He is a very mature individual for his age.The senior members of the team provided valuable insights during the meeting.He felt he was too old to start a new career.
RegisterNeutralNeutralNeutralNeutralNeutral
How commonTop 3,000 (common)Top 2,000 (common)Top 2,000 (common)Top 2,000 (common)Top 2,000 (common)
CEFR levelB1B2C1B2-
Part of speechadjectiveadjective
Collocationsaged cheese, aged whiskey, aged care, aged populationelderly care, elderly person, elderly population, elderly relative, elderly communitymature audience, mature relationship, mature decisions, mature tree, mature productsbe, very, fairly, quite, totoo old to play, too old for school, too old for adventures
Antonymsyoung, fresh, newyoung, youthfulimmature, undeveloped, youngjunior, youthful-
Common mistakesConfusing with 'age,' which refers to the period of living., Using 'aged' incorrectly as a verb instead of an adjective., Mixing up 'aged' with words like 'elderly' which refer specifically to people.'Elderlies' is not a correct plural form., Confusing 'elderly' with 'elder' which refers to a senior in a group or family., Using 'elderly' in negative or derogatory contexts.Confused with 'immature' for opposites., Using 'mature' for young people or animals., Omitting the context when 'mature' implies wisdom.Confused use of 'senior' to mean 'senior citizen' exclusively when it can refer to anyone older., Using 'senior' as a noun without context (it's better as an adjective)., Mixing up 'senior' with 'elderly' which can imply frailty.Using 'too old' to positively describe someone., Confusing with 'old enough', which has a different meaning., Forgetting to use 'too' to indicate excessiveness.
Usage notesUse 'aged' to describe people or objects that have existed for a long time. It can be used formally (e.g., aged 65) or informally (e.g., aged wine). Avoid using it for young subjects.Use 'elderly' in neutral contexts to refer to older adults respectfully. Avoid in informal settings where 'old' might be used more casually.Use 'mature' to describe fully developed people, animals, or things. Avoid using it to describe young subjects.Use 'senior' when referring to older adults or someone in a higher position. Avoid in contexts where age might be sensitive; instead, say 'older adult'.Use 'too old' when discussing age negatively; often implies being past one's prime. Avoid in professional contexts unless relevant to the discussion.

See it in real clips

Elderly
Senior

Frequently asked questions: Aged vs Elderly vs Mature vs Senior vs Too old

What's the difference between Aged, Elderly, Mature, Senior, and Too old?

Aged: Having lived for a long time; old. Elderly: Older people, usually over 65 years old. Mature: Fully grown or developed. Senior: An older person, often retired. Too old: Not young anymore; having lived a long time.

Which is more advanced: Aged, Elderly, Mature, Senior, and Too old?

Mature is the highest level, at C1, on the CEFR scale.

Can you show an example of each?

Aged: They have two children aged six and nine. Elderly: an **elderly man/woman/lady** Mature: He is a very mature individual for his age. Senior: The senior members of the team provided valuable insights during the meeting. Too old: He felt he was too old to start a new career.

Can I use Aged, Elderly, Mature, Senior, and Too old interchangeably?

Not always. Aged, Elderly, Mature, Senior, and Too old are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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