At basic level, students often have only 'young' and 'old' for describing age. The boy is young. The man is old. But English has several words for different aspects of age, and the choice matters for politeness. 'Elderly' is a more respectful word than 'old' for older people. 'Aged' is formal for old. 'Youthful' means looking young, even in older people. 'Middle-aged' covers people roughly 40 to 60. 'Mature' suggests grown-up, sensible — usually positive. 'Childish' means behaving like a child — usually negative. Each fits a different situation. Cultural context matters: in some cultures, 'old' is respectful. In English, 'old' can sound impolite in some situations — 'elderly' is often safer when speaking about or to older people. This lesson covers the main age adjectives at A2 level with attention to politeness.
Before you start — think honestly about your own teaching and experience.
Look at the examples. Answer each question before reading the explanation — this is how your students will learn too.
A baby is very young. (= newly born)
A child is young. (= small, before adolescence)
A teenager is young. (= 13 to 19)
A young adult is in the early 20s.
A middle-aged person is 40 to 60.
An older person is over 60.
An elderly person is over 70 or so.
An aged person is very old (formal).
What is the difference between 'old' and 'elderly'?
'Old' is the basic word for not young — but in English, calling someone 'old' to their face can sound impolite, especially in formal or professional contexts. 'The old man' might sound disrespectful in some situations. 'The elderly man' is more respectful. 'Elderly' carries a sense of dignity and respect for older people. Many older people prefer to be called 'elderly' rather than 'old'. 'Aged' is more formal — used in writing, official contexts, or about very old people. 'Senior' is also used (a senior, senior citizens). Cultural context matters: in some cultures, 'old' is fully respectful. In English-speaking contexts, students should know that 'elderly' is often the safer polite choice for talking about older people, especially in formal situations.
A newborn baby (= just born)
A toddler (= 1 to 3 years old, just walking)
A young child (= 3 to 12)
A teenager / a teen (= 13 to 19 — has 'teen' in the number)
A young adult (= 18 to early 20s)
In the prime of life (= at the best age, often 30s)
What is special about teenagers?
[POINTS IT CONSIDER: English has specific words for different stages of childhood and youth. 'Newborn' is for very young babies. 'Toddler' is for the age of starting to walk (1 to 3). 'Child' covers the years before adolescence. 'Teenager' is the years from 13 to 19 — interestingly, all numbers ending in 'teen' (thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen). The word 'teen' comes from this. 'Young adult' covers the years just after teen (18 to early 20s). 'In the prime of life' is a fixed expression for the best age — usually 30s when a person is at their physical and mental peak. Each fits a different stage. Students should know the words because they come up in everyday conversation about people.]
Positive:
youthful (= looking young, even in older people)
mature (= grown-up, sensible — usually about behaviour)
in the prime of life (= at the best age)
young at heart (= old in years but young in spirit)
Neutral:
young, old, elderly, middle-aged, aged
Negative:
childish (= behaving like a child — about adults, usually criticism)
past it (= too old to do something — often rude)
over the hill (= too old for one's job — informal, often rude)
Why does the choice of word matter?
Age words carry feelings. Positive words like 'youthful' and 'mature' are compliments. 'Looking youthful' suggests a person looks young. 'Mature' means grown-up and sensible — a positive description for someone who behaves well. Negative words like 'childish' criticise — calling an adult 'childish' means they behave like a child when they should be adult. 'Past it' and 'over the hill' are rude expressions for being too old for something — should be avoided in respectful conversation. The neutral words (young, old, elderly, middle-aged) are safe descriptions without strong positive or negative weight. Students should know all three groups and choose based on what they want to convey. For respectful description of older people, 'elderly' is safer than 'old'. For praise of someone older who looks young, 'youthful'. For criticism of immature adults, 'childish'.
| Word | Age range | Tone | Example |
|---|---|---|---|
| newborn | Just born | Neutral | The newborn baby is sleeping. |
| toddler | 1 to 3 years | Neutral | The toddler is learning to walk. |
| young | General — not old | Neutral | The young students are excited about the trip. |
| teenager | 13 to 19 | Neutral | My teenager is studying hard for exams. |
| young adult | 18 to early 20s | Neutral | The young adults are choosing their careers. |
| middle-aged | 40 to 60 | Neutral | My middle-aged uncle has just retired early. |
| old | Not young — general | Neutral but can sound impolite | The old man tells stories from his youth. |
| elderly | Older — respectful | Polite, respectful | The elderly woman is well respected in the community. |
| aged | Very old — formal | Formal | The aged grandfather has many memories of war. |
| youthful | Looking young — positive | Positive | She has a youthful appearance for her age. |
| mature | Grown-up, sensible | Positive | He is mature for his age — very sensible. |
| childish | Behaving like a child — about adults | Negative | His childish behaviour annoyed everyone. |
DISTINCTION 1 — Old vs elderly: Both describe older people but elderly is more respectful. 'The old man' might sound impolite in some contexts. 'The elderly man' is safer. Use elderly for respectful description of older people, especially in formal contexts. Use old when the relationship is close or the context is informal.
DISTINCTION 2 — Aged vs old: Aged is more formal than old, often used in writing or for very old people. 'An aged grandfather' suggests dignity. 'An old grandfather' is everyday. Aged is also used in fixed expressions like 'aged 65' (formal way to give age).
DISTINCTION 3 — Youthful is for looking young: Youthful means looking young, often used for older people who look younger than they are. 'She has a youthful appearance' (looks young). 'Youthful energy' (energy like a young person). It is a compliment. Young is for actual age; youthful is for appearance or feeling.
DISTINCTION 4 — Mature vs old: Mature is positive — grown-up, sensible. 'He is mature for his age' (sensible like an older person). Mature does not necessarily mean old. A 25-year-old can be mature. Old is just about age.
DISTINCTION 5 — Childish is negative: Childish describes adults who behave like children — usually a criticism. 'His childish behaviour' (acting like a child when he should be adult). Different from 'child-like' (positive — innocent, fresh) and 'childlike' (similar). Childish is negative; child-like is positive.
DISTINCTION 6 — Avoid impolite expressions: 'Past it', 'over the hill', 'long in the tooth' are informal and often rude expressions for old. They should be avoided in polite or formal contexts. Even in casual conversation, they can sound disrespectful when used about real people.
Age vocabulary comes up constantly in everyday conversation — describing family members, colleagues, students, neighbours. The choice of word can affect politeness, especially when speaking about older people. Cultural context: in many English-speaking contexts, calling someone 'old' to their face is impolite. 'Elderly' is the safer polite choice. In other cultures, 'old' is fully respectful. Students should know the English conventions. The lesson connects to physical descriptors (#56), positive evaluation (#8), and the various near-synonym lessons. All about precise and appropriate description of people.
Use real examples to teach age words. Talk about students in different age groups, family members at different stages of life, characters in stories. Show that 'elderly' is a respectful word — better than 'old' in many situations. Students should practise the polite forms especially for older people.
Choose the best age word for each context. Think about politeness and accuracy.
Each sentence has a problem with an age word. Suggest a better version and explain.
Use this sequence directly in class — guided discovery, no textbook needed. Tap each step to mark it done.
STEP 1 — Beyond young and old (5 min): Ask students to describe family members of different ages using only 'young' and 'old'. Show that this misses precision and can be impolite. Establish that English has many age words for different stages and tones.
STEP 2 — Age stages (6 min): Drill the stages from baby to elderly. Newborn → toddler → child → teenager → young adult → middle-aged → old / elderly → aged. Match each to a typical age range. Practise five sentences.
STEP 3 — Politeness with old (5 min): Spend focused time on the politeness issue. 'Old' can sound impolite in formal contexts. 'Elderly' is more respectful. 'Aged' is formal. Drill examples — when describing your grandmother to others formally, use elderly. With family at home, old is fine.
STEP 4 — Positive and negative age words (5 min): Drill the tone words. POSITIVE: youthful (looking young), mature (sensible), in the prime of life. NEGATIVE: childish (immature adult behaviour), past it (too old, rude). NEUTRAL: middle-aged, elderly. Match each to a context.
STEP 5 — Describe people in your life (4 min): Each student describes three people of different ages from their life — using a range of age words with appropriate politeness. Share in pairs. Partner checks: were the words appropriate?
Use directly in class — copy, adapt, or read aloud. No printing needed.
For each strategy, choose the option that best describes where you are now.
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