perfect

perfect — adjective

1. as good, exact, or complete as it can be, with nothing wrong, missing, or damage

1.adjectiveA2
Definition

as good, exact, or complete as it can be, with nothing wrong, missing, or damaged.

Example

Lina found a perfect pearl inside her grandmother's old wooden box.

perfect + noun for something without visible flaws

After three tries, Mia finally baked a perfect loaf for breakfast.

Common collocations
  • perfect condition
  • perfect copy
  • perfect score
  • perfect detail
  • perfect health
Synonyms
  • flawless

    stresses the absence of mistakes, marks, or defects

  • ideal

    often points to the best imagined standard, not always a real result

  • excellent

    very good, but not necessarily without faults

Antonyms

Grammar Patterns

perfect + [noun]

in perfect condition

Usage Note

Often used for results, copies, scores, and conditions where no mistake or damage is expected. Distinguish from sense 3 (JUST RIGHT), which is about suitability rather than flawlessness.

Common Mistakes

The answer is very perfect.
The answer is perfect.
'perfect' already carries the idea of nothing needing improvement.

2. used before a noun to stress that something is complete, absolute, or extreme.

2.adjectiveC2
Definition

used before a noun to stress that something is complete, absolute, or extreme.

Example

The school play became a perfect disaster when the lights went out.

before noun: a perfect disaster

At dinner, Leo made a perfect fool of himself by singing loudly.

fixed phrase: make a perfect fool of yourself

Common collocations
  • perfect stranger
  • perfect fool
  • perfect disaster
  • perfect nonsense
  • perfect heaven
Synonyms
  • complete

    neutral intensifier, especially in formal or factual writing

  • utter

    stronger and often used with negative nouns

  • absolute

    common with abstract nouns such as certainty or silence

Grammar Patterns

a perfect + [expressive noun]

Usage Note

Almost always appears before a noun, especially in fixed phrases such as 'a perfect stranger', 'a perfect fool', or 'a perfect disaster'. For emphasis before adjectives, English normally uses adverbs like 'completely' or 'absolutely' instead.

Common Mistakes

The trip was perfect terrible.
The trip was a perfect disaster.
this emphatic sense goes before a noun, not before an adjective.

3. right for what someone needs, or for a particular purpose, time, or situation.

3.adjectiveB1
Definition

right for what someone needs, or for a particular purpose, time, or situation.

Example

This small lamp is perfect for reading beside the sofa.

perfect for + purpose

Her calm voice was perfect for the children after the fire drill.

Common collocations
  • perfect for children
  • perfect for reading
  • perfect timing
  • perfect place
  • perfect match
Synonyms
  • ideal

    stresses suitability, often for a purpose or plan

  • right

    more everyday and less strong

  • made for

    informal phrase suggesting a very natural fit

Antonyms
  • unsuitable

    not right for the purpose or person

  • wrong

    everyday opposite when the fit is poor

Grammar Patterns

perfect for + [person/purpose]

Usage Note

Usually followed by 'for' plus a person, purpose, or situation. Distinguish from sense 1 (NO FAULTS): a hotel can be perfect for a weekend trip even if it has small faults.

Common Mistakes

This bag is perfect to school.
This bag is perfect for school.
use 'for' to show the purpose or situation.

4. describing a verb form that shows an action finished before a stated time or ano

4.adjective
Definition

describing a verb form that shows an action finished before a stated time or another event.

Example

In class, Ms Chen explained the perfect form with a short timeline.

grammar label: perfect form

Our chart lists perfect tenses in blue and past tenses in green.

Common collocations
  • perfect form
  • perfect participle
  • perfect aspect
  • perfect tense

Grammar Patterns

perfect + form/participle/tense

Usage Note

Mostly used in grammar labels before nouns such as 'tense', 'form', and 'participle'. Learners usually meet the noun term itself in noun sense 1.

5. In Western music, used for note distances such as unison, fourths, fifths, and o

5.adjective
Definition

In Western music, used for note distances such as unison, fourths, fifths, and octaves.

Example

On the piano, Aya played a perfect fifth above middle C.

music term: perfect fifth

The choir held a perfect octave while the organ stayed quiet.

Common collocations
  • perfect fourth
  • perfect fifth
  • perfect octave
  • perfect unison

Grammar Patterns

perfect + fourth/fifth/octave/unison

Usage Note

Limited to music theory, especially in labels such as 'perfect fifth' and 'perfect octave'.

Idioms

in an ideal/a perfect world

idiom

This phrase describes a situation that would be best but is not possible in reality.

In a perfect world, everyone would have access to clean water.

In an ideal world, we would never need to work on weekends.

practice makes perfect

idiom

This saying means that doing something repeatedly helps you become very skilled at it.

Maya kept playing the piano every day because practice makes perfect.

Don't worry about mistakes; remember that practice makes perfect.

perfect — noun

perfect — verb

Word family

Synonym discussion

Sense: adjective/1

'Perfect' is the broadest of these words when you mean that nothing is wrong or missing. 'Flawless' is narrower and highlights the absence of visible mistakes, marks, or defects, so it fits skin, performance, or workmanship especially well. 'Ideal' often points to the best possible choice for a purpose, even if the thing is not literally without faults; that links it more closely to adjective sense 3. 'Excellent' is weaker: it means very good, but still leaves room for small problems. A hotel room can be excellent even if one lamp is loose, but it is perfect only if nothing seems wrong. A chair can be ideal for a child even if it is not perfect in every detail.

perfect ↗flawless ↗ideal ↗excellent ↗

Common collocations

Nouns

  • perfect score
  • perfect match
  • perfect timing
  • perfect stranger
  • perfect tense

Adverbs

Phrases

  • far from perfect
  • to perfection
  • in perfect condition
  • a perfect fit

Prepositions

  • perfect for
  • perfect in
  • perfect at

Etymology

LatinOld FrenchMiddle EnglishModern English

English 'perfect' comes through French from Latin 'perfectus', the past participle of 'perficere', meaning 'to finish completely'. The older idea was not just 'very good' but 'brought to completion', which helps explain both the adjective and the grammar term.