INFORMAL definition: 1. not formal or official: 2. (of clothing, behaviour, speech) suitable when you are with friends…. Learn more.

The meaning of INFORMAL is marked by the absence of formality or ceremony. How to use informal in a sentence.

If something’s informal, it’s casual and relaxed and doesn’t follow any particular rules or conventions, whether that's a style of writing, or the dress code for your dinner party.

Informal speech or behaviour is relaxed and friendly rather than serious, very correct, or official. She is refreshingly informal. His friend was less good-looking, but a lot more informal and relaxed.

Definition of informal adjective from the Oxford Advanced Learner's Dictionary. relaxed and friendly; not following strict rules of how to behave or do something. Discussions are held on an informal basis …

1. without formality or ceremony; casual: an informal visit. 2. not according to the prescribed, official, or customary way or manner; irregular; unofficial: informal proceedings. 3. suitable to or characteristic …

Informal Terms, Linguistics suitable to or characteristic of casual and familiar, but educated, speech or writing. Grammar characterizing the second singular pronominal or verbal form, or its use, in certain …

Mar 25, 2026 · Adjective informal (Jawi spelling اينفورمل, comparative lebih informal, superlative paling informal) Not formal; informal.

There are ten meanings listed in OED's entry for the adjective informal, two of which are labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

informal meaning, definition, what is informal: relaxed and friendly without being restr...: Learn more.