Mature vs Middle-aged

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

Mature

Top 2,000 (common)C1adjective

Middle-aged

Top 3,000 (common)
Most common: Mature
 MatureMiddle-aged
Pronunciation🇬🇧 //məˈtjʊə//🇺🇸 //məˈtʃʊr//🇬🇧 //ˈmɪdl eɪdʒd//🇺🇸 //ˈmɪdl eɪdʒd//
MeaningFully grown or developed.A person who is between young and old, usually in their 40s or 50s.
ExampleHe is a very mature individual for his age.He is a **middle-aged** man looking for new hobbies.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 3,000 (common)
CEFR levelC1-
Part of speechadjective
Collocationsmature audience, mature relationship, mature decisions, mature tree, mature productsmiddle-aged adults, middle-aged population, middle-aged individuals
Antonymsimmature, undeveloped, youngyoung, youthful, immature
Common mistakesConfused with 'immature' for opposites., Using 'mature' for young people or animals., Omitting the context when 'mature' implies wisdom.Using it to describe someone younger than 40., Confusing it with 'older adults' which refers to someone significantly older., Assuming it is negative; it can be neutral.
Usage notesUse 'mature' to describe fully developed people, animals, or things. Avoid using it to describe young subjects.Typically used to describe someone in their 40s or 50s. Avoid using for anyone in their 60s or older. More common in formal contexts than informal.

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Middle-aged

Frequently asked questions: Mature vs Middle-aged

What's the difference between Mature and Middle-aged?

Mature: Fully grown or developed. Middle-aged: A person who is between young and old, usually in their 40s or 50s.

Which is more common: Mature and Middle-aged?

Mature is the most common in everyday English.

Can you show an example of each?

Mature: He is a very mature individual for his age. Middle-aged: He is a **middle-aged** man looking for new hobbies.

Can I use Mature and Middle-aged interchangeably?

Not always. Mature and Middle-aged 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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