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informal

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adjective informal pronunciation in American English /ɪnˈfɔrm(ə)l/
  1. 1
    informal talks or meetings are relaxed, do not involve many people, and do not need to produce an official result

    The informal meetings at Camp David were important in strengthening mutual understanding and trust.

    1. a.
      an informal organization, group, or arrangement is not official and has no fixed rules

      informal networks within the community

      They cooperate with other groups on an informal basis.

  2. 2
    relaxed and friendly

    It was very informal – more of a chat than an interview.

    The hotel has an informal atmosphere.

    1. a.
      used about language or behavior that is appropriate for using with friends but not in formal situations

      phrases that the students used in informal conversation

      Beware of being too friendly and informal with your employees.

derived words

informally

adverb

informality

 informal pronunciation in American English /ˌɪnfɔrˈmæləti/  noun [uncountable]

protologism

a new word or phrase invented in the hope that it will become generally used

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