How to Use the Opposite of ‘formal’ in Writing
If you want to write in a way that feels friendly, personal, or relaxed, the opposite of ‘formal’ is the style you need. In English, the most direct opposite is informal, but words like casual, conversational, and everyday also work depending on the situation. This guide will show you exactly how to choose and use informal language in your writing, whether you are sending an email to a colleague, writing a note to a friend, or practicing for a conversation.
Quick Answer: What Is the Opposite of ‘formal’ in Writing?
The opposite of formal writing is informal writing. Informal writing uses everyday words, shorter sentences, and a friendly tone. You can use contractions like “don’t” or “I’m”, personal pronouns like “you” and “we”, and simpler vocabulary. It is the style you use when you want to sound natural, not stiff or official.
Understanding Formal vs. Informal Tone
Before you start using informal language, it helps to know the main differences between formal and informal writing. Formal writing is common in business reports, academic papers, and official letters. Informal writing is better for emails to people you know, social media posts, and personal messages.
Key Differences at a Glance
| Feature | Formal | Informal (Opposite) |
|---|---|---|
| Vocabulary | Complex, specific words (e.g., “commence”) | Simple, common words (e.g., “start”) |
| Sentence length | Longer, more complex sentences | Shorter, direct sentences |
| Pronouns | Third person (one, the reader) | First and second person (I, you, we) |
| Contractions | Avoided (do not, cannot) | Used (don’t, can’t) |
| Emotion | Neutral, objective | Personal, expressive |
| Examples | “We regret to inform you…” | “Sorry, but…” |
When to Use the Opposite of ‘formal’
Using informal language is not wrong—it is simply the right choice for certain situations. Here are the most common contexts where you should choose informal writing over formal writing.
1. Emails to People You Know
When you write to a coworker you work with every day, a friend, or a family member, informal language makes your message feel warm and natural. For example:
- Formal: “I would like to request your assistance with the project.”
- Informal: “Can you help me with the project?”
2. Casual Conversations in Writing
If you are writing a text message, a chat message, or a comment on social media, informal language is expected. It matches how people actually speak.
- Formal: “I am unable to attend the meeting.”
- Informal: “I can’t make it to the meeting.”
3. Personal Notes and Journals
When you write for yourself or for a close audience, formal language can feel unnatural. Use informal language to express your true feelings.
- Formal: “It is my opinion that the event was enjoyable.”
- Informal: “I really liked the event.”
Natural Examples of Informal Writing
Here are real examples of how informal writing looks in different situations. Notice the use of contractions, simple words, and a friendly tone.
Example 1: Email to a Colleague
Subject: Quick question about the report
Hi Maria,
I just looked at the report you sent. I think we need to change the numbers on page 3. Can you check that part again? Let me know if you need help.
Thanks,
Tom
Example 2: Message to a Friend
Hey! Are you free this weekend? I was thinking we could grab coffee. Let me know what works for you.
Example 3: Social Media Post
Just finished reading that book you recommended. Loved it! Thanks for the tip.
Common Mistakes When Using the Opposite of ‘formal’
Even when you want to write informally, some mistakes can make your writing confusing or rude. Here are the most common errors and how to fix them.
Mistake 1: Being Too Casual in the Wrong Situation
Informal writing is great for friends and close coworkers, but it can seem unprofessional in a formal setting. For example, do not use slang or very casual language in a job application or a complaint letter.
Wrong: “Hey, I want that job. Hit me up.”
Better: “I am very interested in the position. Please contact me at your convenience.”
Mistake 2: Using Too Many Abbreviations
Abbreviations like “u” for “you” or “gr8” for “great” are fine in text messages, but they can look lazy in emails or other writing. Stick to full words unless you are sure the reader expects shortcuts.
Wrong: “C u 2morrow.”
Better: “See you tomorrow.”
Mistake 3: Forgetting the Reader’s Feelings
Informal does not mean rude. Always consider how the other person will feel. For example, “Give me the file” is informal but sounds bossy. “Can you send me the file?” is still informal but polite.
Better Alternatives to Common Formal Words
If you want to write informally, replace formal words with simpler, everyday alternatives. Here is a quick list to help you.
| Formal Word | Informal Alternative |
|---|---|
| commence | start |
| terminate | end |
| assist | help |
| purchase | buy |
| request | ask |
| inform | tell |
| obtain | get |
| sufficient | enough |
Mini Practice: Choose the Right Style
Test your understanding. For each sentence, decide if it is formal or informal. Then try to rewrite the formal ones in an informal style.
Question 1
“I would like to express my gratitude for your assistance.”
Answer: Formal. Informal version: “Thanks for your help.”
Question 2
“Can you send me the details when you get a chance?”
Answer: Informal. This is already in an informal style.
Question 3
“We regret to inform you that your application has been declined.”
Answer: Formal. Informal version: “Sorry, but your application was not accepted.”
Question 4
“Let’s meet up later and talk about it.”
Answer: Informal. This is already in an informal style.
Frequently Asked Questions
1. Is it ever okay to mix formal and informal writing?
Yes, but be careful. In some emails, you might start with a formal greeting like “Dear Mr. Smith” and then use a slightly informal tone in the body. This is common in modern workplaces. However, avoid mixing styles too much in one sentence or paragraph, as it can confuse the reader.
2. Can I use the opposite of ‘formal’ in academic writing?
Generally, no. Academic writing usually requires a formal tone. However, some professors allow a more conversational style in personal reflections or discussion posts. Always check the guidelines for your specific assignment.
3. What is the best opposite word for ‘formal’ in a business email?
The best word depends on your relationship with the reader. For a close colleague, use “informal” or “casual.” For a client you know well, “conversational” is a good choice. For a new contact, stay more formal until you build a relationship.
4. How can I practice using informal writing?
Start by rewriting formal sentences you find in emails or articles. Change the vocabulary, add contractions, and shorten the sentences. Then try writing a short email to a friend using only informal language. The more you practice, the more natural it will feel.
Final Tips for Using the Opposite of ‘formal’
Using informal writing is a skill that helps you connect with readers. Remember these three tips:
- Know your audience. Use informal language with people you know or in relaxed settings.
- Keep it clear. Informal does not mean messy. Use correct grammar and spelling.
- Be polite. Even casual writing should show respect for the reader.
For more help with opposites and vocabulary, explore our Common Opposites and Antonyms with Examples sections. If you have questions, visit our FAQ page or contact us.
