Definition of informal in English:


See synonyms for informal

Translate informal into Spanish


  • 1Having a relaxed, friendly, or unofficial style, manner, or nature.

    ‘an informal atmosphere’
    • ‘an informal agreement between the two companies’
    • ‘It is an army establishment and although run on military lines the atmosphere is easy, informal and friendly.’
    • ‘The atmosphere is relaxed, informal and friendly.’
    • ‘The service throughout was extremely friendly and the informal atmosphere was enhanced by the fact that we felt we could have sat there all afternoon if we had wanted to.’
    • ‘That kind of thing helps create the friendly, informal atmosphere that makes the blogosphere so much fun to be a part of.’
    • ‘She wins a £100 prize for the photograph that judges decided best summed up the friendly and informal atmosphere of the event.’
    • ‘We immediately relaxed into the restaurant's friendly, informal atmosphere.’
    • ‘The twins were delighted with the atmosphere and the informal nature of the celebrations.’
    • ‘Refreshments were provided and enjoyed by all in a relaxed and informal atmosphere.’
    • ‘It's a friendly, informal place, and easy to relax in.’
    • ‘Be prepared to share a table as the idea here is to create an informal and easy going atmosphere.’
    • ‘The building will be open to everyone, the atmosphere will be friendly, inclusive and informal.’
    • ‘Part of the appeal of tutoring is the informal nature of the job and the casual, friendly relationship it allows tutors and faculty members to develop.’
    • ‘He is undoubtedly a purist, but he writes from the heart in an informal style that welcomes the reader as a close friend.’
    • ‘Many people dislike his informal style of leadership.’
    • ‘Last night I attended the informal opening of a friend's bar on 2nd Avenue.’
    • ‘I generally spent most of what I had on used records, then lent them to friends in informal return for their holdings.’
    • ‘Consequently it has a very informal style, spilling down a hillside on the Atlantic coast with sections divided between limestone boulders.’
    • ‘A lot of what makes weblogs interesting is their personal, ephemeral, and informal nature.’
    • ‘But more people were coming into Yorkshire on business and on informal holidays, visiting friends and relatives.’
    • ‘This will be an informal gathering of friends and neighbours and all who would like to come along are invited to do so.’
    casual, relaxed, easy-going, natural, unceremonious, unofficial, non-formal, unstudied, unaffected
    View synonyms
    1. 1.1Of or denoting a style of writing or conversational speech characterized by simple grammatical structures, familiar vocabulary, and use of idioms, e.g., tu in French.
      ‘The content of websites can be written in formal as well as informal language.’
      • ‘The blend of formal and informal language suits the school's mission and vision perfectly.’
      • ‘And what about informal and formal names for living things?’
      • ‘There is considerable lexical borrowing and linguistic code switching in informal conversation.’
      • ‘They speak English in formal discourse or political discussions and shift to Patois in informal conversation and gossip.’
      • ‘Idiomatic usages are usually colloquial and informal, more or less obvious figurative extensions of ordinary uses.’
      • ‘This function of informal language will generate terms and labels that differ from official usage in several ways.’
      • ‘Iago is particularly clever at varying his language across the formal / informal register to suit his listeners.’
      • ‘Heritage language learners often speak informal dialects and/or registers of their respective languages.’
      • ‘A small percentage of the students admit that sometimes both they and their parents speak an informal language variety at home.’
      • ‘These languages are not merely a set of informal gestures, nor are they a signed version of any particular spoken language.’
      • ‘Within months, the discussions turned from informal to formal.’
      • ‘It should feel like an informal conversation between people with the same goals, all trying to explore and surface good thinking.’
      • ‘I was completely entranced listening to their informal conversation and subsequent business discussion, sitting there with a stupid smile on my face.’
      • ‘This involved brief informal conversations with the women about their attitudes regarding the men who pass by their windows.’
      • ‘Stories are shared through the media, seminars, and classes and during informal conversations in the workplace.’
      • ‘It is apparent that the writing style is simple and informal.’
      • ‘It is helped by market research showing that the British public is starting to like the Liverpool accent again; it sounds friendly and informal.’
      • ‘No matter how serious minded the intention behind the blog, the Internet forces the writer into shortened, informal style.’
      colloquial, vernacular, idiomatic, demotic, non-standard, popular, dialectal, non-literary
      View synonyms
    2. 1.2(of dress) casual; suitable for everyday wear.
      ‘Cate nodded and slipped out of her informal dress that she had worn all day.’
      • ‘He liked jazz, preferred informal dress, didn't much care for hunting and shooting, and was openly contemptuous of red carpets.’
      • ‘Dress is informal and music will be provided by the Brose Walsh Band.’
      • ‘The Croydon Symphony Orchestra was at work in informal dress; in shirt-sleeves, jeans and other casual clothes.’
      • ‘She now wore a low-cut pink top that flirted with the school's informal dress code.’
      • ‘So if you don't have that much time left before you wedding, an informal dress could be a good choice.’
      • ‘This identified him as a doctor, yet he wore simple, informal clothes.’
      • ‘Remember however that most reservation only dining restaurants require formal or informal dress attire as well.’
      • ‘Most performers wear the informal street clothes of a 26-year-old garage mechanic.’
      • ‘Tickets are now available priced at £20 and 30 euro and the dress code is informal.’
      • ‘Many locals dress in period costume to set the tone for the afternoon, but the dress code is informal, so no one needs to feel pressured.’
      • ‘Fernandes' informal wear had that wily old politician and general Fidel Ramos envious.’
      • ‘Dress in class is informal, although men should consider a tie for more formal occasions.’
      • ‘We asked them to be fairly informal in their dress and not to carry clip boards or briefcases but to carry the questionnaires around in plastic bags.’
      • ‘Some people were wearing suits while a few others were in informal clothing.’
      • ‘It was more like a dress jacket with black pants because he had leaned towards the informal side and wasn't wearing a tie or a vest.’
      casual, relaxed, comfortable, everyday, sloppy, leisure
      View synonyms



/inˈfôrm(ə)l/ /ɪnˈfɔrm(ə)l/