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

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

Informal definition: without formality or ceremony; casual.. See examples of INFORMAL used in a sentence.

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 …

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 …

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 …

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.

Aug 21, 2025 · informal (comparative more informal, superlative most informal) Not formal or ceremonious. quotations an informal get-together

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 …

INFORMAL meaning: 1 : not formal: such as; 2 : having a friendly and relaxed quality