integral

integral — adjective

1. belonging to something in such a central way that the whole thing cannot functio

1.adjectiveB2
Definition

belonging to something in such a central way that the whole thing cannot function, exist, or be complete without it

Example

The software is now an integral part of the school's daily teaching system.

collocation: integral part of

Good communication skills were integral to Asher's success as a team leader.

pattern: integral + to + noun

Common collocations
  • integral part
  • integral to
  • play an integral role
  • integral component
Synonyms
  • essential

    the closest synonym; both suggest something cannot be removed without damaging the whole

  • crucial

    emphasises importance for success or outcome; slightly stronger than 'integral'

  • fundamental

    stresses being at the base or foundation of something

  • vital

    implies something is needed for life or continued existence; stronger than 'integral'

Antonyms
  • peripheral

    describes something that is on the edge and not central

  • inessential

    means something can be removed without affecting the whole

Grammar Patterns

integral + to + noun phrase

integral + part of + noun phrase

Usage Note

Often followed by 'to' to show what something is essential for. Can also appear before 'part of' — 'an integral part of something' is a common fixed expression.

Common Mistakes

Water is integral for all living things.
Water is integral to all living things.
the correct preposition after 'integral' is 'to', not 'for'.

2. designed or built into something as one unit, rather than being added on or supp

2.adjectiveB2
Definition

designed or built into something as one unit, rather than being added on or supplied as a separate item

Example

The new car has an integral GPS system built right into the dashboard.

collocation: integral + noun (built-in feature)

In this design, the handle is integral to the frame, so you cannot remove it.

pattern: integral to + noun

Common collocations
  • integral component
  • integral system
  • integral design
  • integral part of the structure
Synonyms
  • built-in

    more common in everyday speech; 'integral' is slightly more formal

  • inbuilt

    British English variant; same meaning as 'built-in'

  • incorporated

    suggests something has been deliberately included as part of a design

Antonyms
  • separate

    describes parts that are not physically joined and can be removed

  • detachable

    means designed to be taken off or disconnected

  • external

    means located outside the main body or unit

Grammar Patterns

integral + noun

integral + to + noun phrase

Usage Note

Commonly describes parts or features of machines, devices, or buildings that are made as one piece rather than added later. Distinguish from sense 1 (ESSENTIAL PART), where the focus is on importance; here the focus is on physical or structural unity.

Common Mistakes

The battery is integral from the phone.
The battery is integral to the phone.
after 'integral', use 'to', not 'from'.

3. containing every part that is needed, with nothing missing; complete and entire

3.adjectiveC1
Definition

containing every part that is needed, with nothing missing; complete and entire

Example

The museum proudly presented its integral pottery collection after finally acquiring the missing Ming vase.

attributive: integral + noun for complete collection

The historian managed to reconstruct the integral document from pieces found in three different archives.

Common collocations
  • integral whole
  • integral collection
  • integral text
  • integral work
Synonyms
  • complete

    the most common and neutral synonym; 'integral' is more formal

  • entire

    emphasises that nothing has been taken away or left out

  • whole

    focuses on the unity of all parts together

Antonyms
  • incomplete

    describes something that is missing one or more parts

  • partial

    means only part of the whole is present

Grammar Patterns

integral + noun

become + integral

be + integral

Usage Note

This sense is formal and less frequent than senses 1 and 2. It is often used in academic writing, art criticism, or historical descriptions to emphasise that a collection or text has all its parts. Distinguish from sense 2 (BUILT-IN), which describes parts joined together physically; sense 3 describes a whole thing whose all parts are present.

integral — noun

Word family

Synonym discussion

Sense: adjective/1

These four words all describe something of great importance, but they differ in scope and connotation. 'Essential' is the closest synonym to 'integral' — both suggest that removing the thing would damage the whole. 'Crucial' emphasises the turning point or decisive moment: a crucial decision is one that will determine the outcome. 'Fundamental' points to the base or foundation: a fundamental principle is one that other ideas rest upon. 'Vital' is the strongest, literally meaning 'necessary for life', and is used when failure is not an option. For instance, clean water is vital in a hospital, communication skills are essential for a manager, a strong defence is crucial for winning a game, and mutual respect is fundamental to any healthy relationship — all four could work in some contexts, but the shade of meaning changes.

essential ↗crucial ↗fundamental ↗vital ↗

Common collocations

Nouns

Adverbs

  • absolutely integral
  • truly integral

Phrases

  • an integral part of

Prepositions

  • integral to

Etymology

LatinEnglish

The word 'integral' comes from the Latin word 'integer', meaning 'whole, complete, untouched'. In the 15th century, it entered English through late Latin 'integralis', first used to describe something that forms a whole. The mathematical sense appeared in the 17th century as calculus was being developed, referring to a function that represents a complete sum or whole quantity.