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informal

informal

98 3.1
Not formal or official, relaxed and casual
  • adjective
  • /ɪnˈfɔrməl/
translation icon : informal
  • You were much too informal with me for that.
  • formal and informal
  • informal education
  • informal learning

I didn't know how informal it was or how formal it was.

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Examples

  • He prefers an informal approach to meetings, where ideas can be shared openly without strict agendas.

  • I will give an informal proof for why I can do that.

  • We're about to split into a more informal student set of questions.

  • But you should take it as a very easy informal first date.

  • It's a big crowd in here for an informal interview.

  • Some kind of an informal agreement.

  • Work used to be a lot more informal and a lot more casual.

  • Rachel runs a very informal household.

  • Singing in an informal setting was a new and rewarding experience for me.

    Academic text (2011)
  • It's important to have that chunk of time with your manager, but you also need informal, ongoing supervision.

    Academic text (2011)

Synonyms

casual
vsinformal
194 2.8

Informal and relaxed, not serious

means relaxed and not following formal procedures rather than careless
loose
vsinformal
134 3.0

Not strictly organized or controlled, often a group of separate people

refers to being unofficial and not following formal procedures
free-and-easy
vsinformal
  • Informal
2 5.7

Relaxed and friendly without following strict rules

describes not following formal procedures rather than mere attitude
unceremonious
vsinformal
1 6.7

Done quickly and without polite or formal manners

is used for a relaxed manner rather than abrupt or rude action
non-formal
vsinformal
  • Informal
3.8

Casual and relaxed in style, not official or strict

focuses on relaxed manner rather than organizational status
unstuffy
vsinformal
  • Informal
4.3

Casual and friendly so people feel comfortable

emphasizes absence of formal rules rather than tone

Antonyms

2.3

Approved by a person or group in charge

formal
  • Formal
394 3.0

Official and proper in a way suitable for important occasions

How Formal

official
2.3
formal
  • Formal
63 3.0
semi-formal
1 3.8
informal
98 3.1
casual
194 2.8

Surface Forms

informal positive
informaller comparative
informallest superlative

Morphology

informal = formal (transparent) = in + formal

The negative prefix 'in-' combines straightforwardly with 'formal' to mean 'not formal'.

Etymology

Informal begins with in- meaning 'not' and the rest comes from form meaning 'shape' or 'rule', the same part as formal. So informal means 'not following the usual form or rules', which is why it describes something relaxed or casual.