What does functional mean?

Definitions for functional
ˈfʌŋk ʃə nlfunc·tion·al

This dictionary definitions page includes all the possible meanings, example usage and translations of the word functional.

Princeton's WordNet

  1. functionaladjective

    designed for or capable of a particular function or use

    "a style of writing in which every word is functional"; "functional architecture"

  2. functionaladjective

    involving or affecting function rather than physiology

    "functional deafness"

  3. functionaladjective

    relating to or based on function especially as opposed to structure

    "the problem now is not a constitutional one; it is a functional one"; "delegates elected on a functional rather than a geographical basis"

  4. functional, usable, useable, operable, operationaladjective

    fit or ready for use or service

    "the toaster was still functional even after being dropped"; "the lawnmower is a bit rusty but still usable"; "an operational aircraft"; "the dishwasher is now in working order"

  5. functionaladjective

    designed for or adapted to a function or use

    "functional education selects knowledge that is concrete and usable rather than abstract and theoretical"; "functional architecture"

  6. running(a), operative, functional, working(a)adjective

    (of e.g. a machine) performing or capable of performing

    "in running (or working) order"; "a functional set of brakes"


  1. functionalnoun

    A function that takes a function as its argument; More precisely: A function y=f(x) whose argument x varies in a space of (real valued, complex valued) functions and whose value belongs to a monodimensional space. An example: the definite integration of integrable real functions in a real interval.

  2. functionalnoun

    A scalar-valued linear function on a vector space

  3. functionalnoun

    An object encapsulating a function pointer (or equivalent).

  4. functionaladjective

    In good working order.

  5. functionaladjective

    Useful; serving a purpose, fulfilling a function

    That sculpture is not merely artistic, but also functional: it can be used as a hatrack.

  6. functionaladjective

    Only for functional purposes, notably in architecture

    A functional construction element generally must meet higher technical but lower aesthetical requirements

  7. functionaladjective

    Having semantics defined purely in terms of mathematical functions, without side-effects.

  8. functionaladjective

    Of a disease, such that its symptoms cannot be referred to any appreciable lesion or change of structure; opposed to organic disease, in which the organ itself is affected.


  1. functional

    Functional pertains to the operation or performance of a system, a process, or an entity, highlighting the practical use or purpose of something rather than its appearance or aesthetic value. It often refers to something designed to be practical and useful rather than attractive. Essentially, if something is functional, it is working properly or fulfilling its purpose. This term can be used in various fields such as math, sociology, computer science, and more, with contexts dictating its specific meaning.

Webster Dictionary

  1. Functionaladjective

    pertaining to, or connected with, a function or duty; official

  2. Functionaladjective

    pertaining to the function of an organ or part, or to the functions in general


  1. Functional

    In mathematics, and particularly in functional analysis and the Calculus of variations, a functional is a map from a vector space into its underlying scalar field, or a set of functions to the real numbers. In other words, it is a function that takes a vector as its input argument, and returns a scalar. Commonly the vector space is a space of functions, thus the functional takes a function for its input argument, then it is sometimes considered a function of a function. Its use originates in the calculus of variations where one searches for a function that minimizes a certain functional. A particularly important application in physics is searching for a state of a system that minimizes the energy functional. Transformations of functions is a rather more general concept, see Operator (mathematics).

Editors Contribution

  1. functional

    Designed for a specific function.

    The machine was functional and used often and maintained well.

    Submitted by MaryC on March 14, 2020  

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British National Corpus

  1. Spoken Corpus Frequency

    Rank popularity for the word 'functional' in Spoken Corpus Frequency: #4523

  2. Adjectives Frequency

    Rank popularity for the word 'functional' in Adjectives Frequency: #612

How to pronounce functional?

How to say functional in sign language?


  1. Chaldean Numerology

    The numerical value of functional in Chaldean Numerology is: 7

  2. Pythagorean Numerology

    The numerical value of functional in Pythagorean Numerology is: 7

Examples of functional in a Sentence

  1. Danielle Bayard Jackson:

    If you have a functional life with clothes on your floor, that’s amazing. I’m so glad that system works for you.

  2. Economist Brian Jackson:

    One to three years is a blink of an eye in terms of city developments, so many of these cities still have time to fill and become functional.

  3. Chief Executive David Gurle:

    The product has reached a stable, what I would call a functional level. We are starting cross company communications. In June we will get into one-to-many, many-to-many and other forms of external communications, the community effect should kick off around September.

  4. Amanda Oliver:

    Birks are back in style( as if they ever left !) and this is one of the brand’s most popular waterproof options, they’re equal parts stylish and functional, and as appropriate for a Saturday beach day as they are for Sunday morning brunch.

  5. Stuart Kim:

    These supercentenarians have a different clock where they are staying really highly functional for a long time. We wanted to know what they had. It's pretty clearly genetic, The results indicate that the genetic effect must be complex. It must be many genes, or different genes in each supercentenarian, that gives them the edge to live an extremely long time.

Popularity rank by frequency of use


Translations for functional

From our Multilingual Translation Dictionary

  • وظيفيArabic
  • funkcionální, funkčníCzech
  • funktionell, Gebrauchs, zweckmäßig, operativ, funktional, funktionsGerman
  • συναρτησιακός, λειτουργικόςGreek
  • funcionalSpanish
  • toimiva, käytännöllinenFinnish
  • fonctionnelFrench
  • funzionale, funzionanteItalian
  • 汎関数, 機能, 機能的, 関数オブジェクト, 便利Japanese
  • functionerend, operationeel, functioneel, functionaal, doelmatig, werkendDutch
  • funkcjonał, działający, funkcyjnyPolish
  • funcionalPortuguese
  • функциональный, функционировать, функционал, рабочий, работать, действоватьRussian
  • funktional, funktionell, fungerandeSwedish
  • செயல்பாட்டுTamil
  • işlevsi, fonksiyonel, işlevselTurkish
  • פאַנגקשאַנאַלYiddish

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    small cat-like predatory mammals of warmer parts of the Old World
    A jocularity
    B viverrine
    C macron
    D couvade

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