informal
relaxed and casual in style
Relaxed and casual; not serious or very polite in style or situation.
informal [meeting/party/chat/setting/tone]
- The interview was quite informal, and we just chatted over coffee.
- They prefer an informal office culture where people can dress and speak more freely.
- The letter had a warm, informal tone that made customers feel welcome.
- It was only an informal party, so you didn’t need to bring a gift.
- Let’s keep this discussion informal and open so everyone feels comfortable speaking.
- The dinner was informal, and people talked freely.
- We had an informal meeting in the café.
- Her email was very informal and friendly.
- Our teacher likes an informal class atmosphere.
- He spoke in an informal way with his boss.
not official or legally formalized
Not official; not written down or done by strict rules or law.
informal [agreement/arrangement/discussion/process]
- We have an informal agreement to share the office space, but nothing is written.
- Employees are encouraged to resolve problems through an informal process before making a formal complaint.
- He gave the minister some informal advice over lunch.
- The talks were strictly informal and did not represent the government’s official position.
- Parents often have informal arrangements to pick up each other’s children from school.
- They made an informal agreement to work together.
- This is just an informal visit, not an official one.
- We had an informal talk before the real meeting.
- Try an informal solution before you write a formal letter.
- The rules are informal here and not written down.
casual in clothing or dress code
Describes clothes that are casual and not for very formal events.
informal [clothes/dress/dress code/wear]
- The invitation says the dress code is informal, so jeans are fine.
- He prefers informal clothes and rarely wears a suit.
- On Fridays, staff can wear more informal dress to the office.
- Her style is informal but still looks neat and professional.
- The restaurant has a very informal look, with people in T-shirts and sneakers.
- You can wear informal clothes to the party.
- The meeting is informal, so no suit is needed.
- At this school, students wear informal dress on Fridays.
- His style at work is informal but clean.
- She likes an informal look, not a formal one.
casual or conversational language style
Describes language that is friendly and like normal speech, not careful or official writing.
informal [language/speech/writing/email/text]
- Avoid using very informal language in an academic essay.
- The text message was full of slang and other informal expressions.
- In this report, an informal writing style would be inappropriate.
- Teachers often switch from formal to informal speech when chatting with students after class.
- Her blog uses a friendly, informal tone to explain complex ideas.
- Do not use informal words in your exam writing.
- That email is too informal for your boss.
- Text messages are usually written in informal language.
- He spoke in informal English with his friends.
- We learned the difference between formal and informal style.
- Base: informal
informal agreement
1unwritten, unofficial agreement
An agreement that people make by talking but do not write down or make official.
- We have an informal agreement to share the costs of the project.
- The two companies reached an informal agreement before signing a contract.
informal economy
1economy outside formal regulation
All the work and business that is not officially recorded by the government and usually not taxed.
- The informal economy can provide income for people who cannot find formal jobs.
- Measuring the size of the informal economy is difficult for researchers.
informal education
1learning outside formal schools
Learning that happens in daily life, at home, at work, or in the community, not in an official school or course.
- Museums play an important role in informal education.
- Children get a lot of informal education from their families.
informal language
1everyday, relaxed style of language
Language that people use in normal, friendly situations, with simple words and grammar and sometimes slang.
- This textbook explains which words are formal and which are informal language.
- In job applications, avoid very informal language like slang and emojis.
informal meeting
1relaxed, unofficial meeting
A meeting that is relaxed and not official, often without a fixed plan or record.
- Let’s have an informal meeting tomorrow to share our first ideas.
- The manager held an informal meeting over lunch to discuss the changes.
informal sector
1unregulated part of the economy
The part of the economy where people work and earn money, but the government does not control or tax the work in a clear way.
- Many street vendors work in the informal sector.
- In some countries, the informal sector employs a large share of the population.
keep it informal
1ask to stay relaxed and casual
To ask people to stay relaxed and not follow strict rules in how they talk, act, or dress.
- Let’s keep it informal and just talk about how we feel.
- The host told guests to keep it informal and wear whatever they liked.