Meaning & use

functional

adjective·Academic

Last updated

UK/ˈfʌŋkʃənl/
US/ˈfʌŋkʃənl/

Meanings

  1. adjectivecomparable

    Able to work as intended, so that it does its job.

    Grammar: Can follow a linking verb or come before a noun: the lift is functional again.

    Patterns

    • be fully functional
    • become functional

    The old printer is still functional, even though it is slow.

    Engineers made the bridge functional again within a week of the flood.

    Only two of the four elevators were functional on Monday.

  2. adjectivecomparable

    Designed mainly to be practical and useful rather than attractive.

    Grammar: Often describes design or furniture: a functional kitchen, not a fancy one.

    Patterns

    • functional design
    • functional clothing

    The office furniture was plain but functional.

    She prefers functional shoes that she can wear all day.

    The hotel room was small and functional, with nothing extra.

  3. adjectivebefore a nountechnical

    Relating to the way something works or what it is used for, as opposed to how it looks or what it is made of.

    Grammar: Used before nouns such as role, skill or difference: a functional role.

    Patterns

    • functional role
    • functional difference

    Doctors tested whether the damage caused any functional loss in the patient's hand.

    The two parts look similar but have different functional roles in the cell.

    The software team wrote a list of functional requirements before starting.

Word forms

comparativemore functional
superlativemost functional

Common combinations

fully functional
The repaired radio is fully functional now.
perfectly functional
The bike is old but perfectly functional.
functional design
The shop's functional design makes it easy to find things.
functional requirements
The client sent a document of functional requirements for the app.
remain functional
The generator must remain functional during the outage.

Synonyms and how they differ

working
This is the plain everyday word for something that is not broken, while functional can also praise a practical design.
practical
This stresses usefulness in real life, whereas functional stresses that the object does what it was made for.
operational
This is more formal and is used for machines, systems or services that are running, not for plain furniture.
utilitarian
This often sounds slightly negative, suggesting something plain and without beauty, while functional is more neutral.

Opposites

Word family

function noun
the purpose of something, or a mathematical rule
function verb
to work or operate in a particular way
functionally adverb
in a way that relates to how something works
functionality noun
the range of things a product can do
dysfunctional adjective
not working normally or properly

Commonly confused: functional or functionable?

functional vs functionable

Functionable is not a standard English word; use functional for something that works or is practical.

Practice

The cabin was not luxurious, but the stove, bed and table were all ____, and that was enough for the hikers.

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