Synonyms of functional in English:

functional

adjective

  • 1 an ugly functional concrete building
    practical, useful, utilitarian, utility, workaday, serviceable;
    severe, spartan, ascetic, bare, modest, unadorned, undecorated, unornamented, unembellished, unostentatious, uncluttered, unfussy, without frills;
    impersonal, characterless, soulless, colourless, institutional, antiseptic, clinical
    informal no frills
    [Antonyms] ornate, impractical
  • 2 the air vent needs clearing to keep it fully functional
    working, in working order, functioning, effective, usable, in service, in use;
    informal up and running
    [Antonyms] out of order, malfunctioning
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