The nature and meaning of the superlative
The superlative form of an adjective shows the extreme degree of a quality in a particular group: the tallest, the shortest, the cheapest. This meaning can apply to one item or to several items that are equal in this quality: These two bags are the cheapest.
This rule explains how to form the superlative specifically for short adjectives: one-syllable adjectives (tall, big, hot) and two-syllable adjectives ending in -y (happy, busy, easy). Longer adjectives (for example, interesting and expensive) form the superlative differently — with the most, and that is covered in a neighbouring rule.
The basic model before a noun is the + adjective-est: the oldest building. But the is not required in every construction: my oldest friend; after be, when there is no noun, it is also possible to say Which route is safest?
Our office kettle is the oldest piece of equipment we own.
Our office kettle is the oldest piece of equipment we own.
the + old-est: of all our equipment, this item is the oldest.
This is the shortest queue at the checkout right now.
This is the shortest queue at the checkout right now.
We are comparing this queue with all the other queues at the same time.
Which adjectives are considered short
For this rule, two types of adjectives are considered short: (1) one-syllable words — tall, big, hot, nice, safe; (2) two-syllable words ending in a consonant + y — happy, busy, easy, funny.
Longer adjectives do not follow this rule: these words form the superlative with the most, and we do not practise that form here. This includes two-syllable words that do NOT end in a consonant + y (modern, careful — two syllables each), as well as three-syllable and longer words (expensive). The boundary is not always obvious: some two-syllable adjectives may behave differently, so here we focus only on clearly short and clearly long examples.
Some adjectives have completely special, irregular forms (good → best, bad → worst) — they are outside this rule too.
This backpack is the lightest option for a day trip.
This backpack is the lightest option for a day trip.
Light has one syllable, so it is a short word and we simply add -est.
Of the three interns, Marta is the busiest this week.
Of the three interns, Marta is the busiest this week.
Busy has two syllables and ends in a consonant + y, so it is also a short word under this rule.
Simple model: adjective + -est
Most short adjectives simply receive the ending -est without any spelling changes: tall → tallest, small → smallest, clean → cleanest.
This is the basic model; the next three sections describe three separate spelling exceptions that occur just as frequently.
adjective + -est
- adjective —
- A word describing what someone or something is like: happy, tired, interesting.
This route feels the calmest at sunrise.
This route feels the calmest at sunrise.
Calm → calmest: we simply add -est.
That was the loudest concert I've ever attended.
That was the loudest concert I've ever attended.
Loud → loudest: the regular model, with no spelling changes.
Doubling the consonant before -est
In one-syllable words with a short stressed vowel written with one letter before the final consonant, we often double the final consonant: big → biggest, hot → hottest, thin → thinnest.
In clean, there are two vowel letters before the final consonant; in sharp, there are two consonants, so there is no doubling. We do not double final w, x, or y: new → newest, low → lowest.
consonant-vowel-consonant → double the final consonant + -est
August was the wettest month of the whole year on the coast.
August was the wettest month of the whole year on the coast.
Wet → wettest: we double t before -est.
This is the flattest field on the whole farm.
This is the flattest field on the whole farm.
Flat → flattest: doubling t.
Adjectives ending in a consonant + y: y → i
If a short adjective ends in a consonant followed by y, change y to i before -est: happy → happiest, easy → easiest, early → earliest.
If a vowel comes before y (for example, grey), y does not change; however, such words are rare, and in this rule we focus specifically on the consonant + y pattern.
consonant + y → i + -est
Saturday is usually the busiest day at the market.
Saturday is usually the busiest day at the market.
Busy → busiest: y changes to i.
This was the funniest story anyone told at dinner.
This was the funniest story anyone told at dinner.
Funny → funniest: y → i before -est.
Adjectives that already end in e
If an adjective already ends in silent e, add only -st, without an extra e: nice → nicest, safe → safest, large → largest.
A common mistake is to write niceest or safeest with two consecutive e's; the correct form always has only one e before -st.
adjective ending in -e + -st (only -st, without a second e)
- adjective —
- A word describing what someone or something is like: happy, tired, interesting.
This is the closest pharmacy to the station.
This is the closest pharmacy to the station.
Close → closest: add only -st.
That was the wisest decision the team made all year.
That was the wisest decision the team made all year.
Wise → wisest: only -st, without doubling e.
The, possessive words, and the form of be
Before a noun in the basic model, we use the: the oldest employee. A possessive word takes its place: our oldest employee. After be, when there is no following noun, the can sometimes be omitted: This route is safest. This is not a sign of careless speech.
Be agrees with the subject: I am, he/she/it is, you/we/they are; in the past — I/he/she/it was, you/we/they were.
These two laptops are the slowest in the whole office.
These two laptops are the slowest in the whole office.
The subject is plural (two laptops), so we use are, not is.
This bridge is the oldest crossing on the river.
This bridge is the oldest crossing on the river.
In this group, the comes before oldest crossing; is agrees with bridge.
The comparison group: the prepositions in and of, and the limits of the rule
After a superlative, we usually name the group with which we are comparing. If it is a place, organisation, or category as a whole, we use in: in the class, in the office, in the world. If it is a specific counted group, we use of: of the three, of all the students, of us. A period of time (a day, month, year, or season) within which we compare also takes of: the coldest month of the year, the busiest day of the week.
This rule describes only short adjectives with -est. Longer adjectives (the most comfortable, the most expensive) and adjectives with special irregular forms (the best, the worst, the furthest) form the superlative differently — they are covered by neighbouring rules on the same topic.
In everyday speech, the superlative of a short adjective naturally appears in phrases such as one of the + adjective-est + plural noun: for example, “one of the safest neighbourhoods in the city”.
This café is the quietest spot in the whole street.
This café is the quietest spot in the whole street.
In the street: a place or category as a whole.
Of the four routes, this trail is the steepest by far.
Of the four routes, this trail is the steepest by far.
Of the four routes: a specific counted group.
This shop is one of the cheapest places in town for bike repairs.
This shop is one of the cheapest places in town for bike repairs.
One of the + cheapest + plural noun: a natural conversational phrase.
Common mistakes
Incorrect:He is the most tall player on our five-a-side team.
Correct:He is the tallest player on our five-a-side team.
For a neutral comparison of height, the standard form is tallest.
Incorrect:This is the bigest city I have ever visited.
Correct:This is the biggest city I have ever visited.
Big ends in consonant-vowel-consonant (b-i-g), so we double the final consonant before -est: biggest, not bigest.
Incorrect:She is the happyest person in our team.
Correct:She is the happiest person in our team.
Happy ends in a consonant + y, so y changes to i before -est: happiest, not happyest.
Incorrect:This is the niceest hotel we've stayed in.
Correct:This is the nicest hotel we've stayed in.
Nice already ends in silent e, so we do not add a second e before -st: nicest, not niceest.
Incorrect:Priya is oldest employee in the marketing team.
Correct:Priya is the oldest employee in the marketing team.
A determiner is needed here before the singular countable noun employee; in the basic model, this is the oldest employee.
Incorrect:These two exits is the widest in the building.
Correct:These two exits are the widest in the building.
The verb be agrees with the subject: the subject here is plural (two exits), so we need are, not is.
Incorrect:She's the friendliest in three colleagues.
Correct:She's the friendliest of the three colleagues.
Before a specific counted group (“the three colleagues”), we use of, not in; in is suitable for a place or category as a whole (in the office).
Incorrect:This is more biggest phone I've used.
Correct:This is the biggest phone I've used.
With short adjectives in the superlative, we do not add more alongside -est: the form biggest already expresses the superlative.
Incorrect:This book is the interestingest one I've read this year.
Correct:This book is the most interesting one I've read this year.
Interesting is a long adjective (three syllables), so it is outside this rule: its superlative is formed with the most, not with -est.