We all meet people who bend the truth from time to time. But what about someone who lies constantly? Knowing the right word to describe this behavior can help you communicate more clearly and confidently. Whether you are writing an essay, improving your vocabulary, or describing a character in a story, having precise language makes your message stronger.
In this article, you’ll learn 12 useful words for people who are always lying. Each word includes a clear explanation and examples to help English learners understand how to use them correctly.
1. Liar
Liar is the most direct and common word. It describes someone who tells lies.
He is a liar who cannot be trusted.
She lied again—she’s such a liar.
This word is simple but strong. It can sound harsh, so use it carefully.
2. Pathological Liar
A pathological liar is someone who lies constantly, often without a clear reason. It suggests a deeper psychological habit.
He doesn’t just exaggerate—he’s a pathological liar.
This term is more formal and often used in serious discussions.
3. Compulsive Liar
A compulsive liar feels a strong urge to lie. The lying may be automatic or difficult to control.
She lies about small things for no reason. She might be a compulsive liar.
This phrase is common in both everyday speech and psychology.
4. Deceiver
A deceiver is someone who tricks or misleads others. Lying is often part of that behavior.
The salesman was a clever deceiver who fooled many customers.
This word sounds more formal and is often used in writing.
5. Fraud
A fraud is someone who lies or cheats, especially for money or personal gain.
The investment advisor turned out to be a fraud.
This word is commonly used in legal or business situations.
6. Charlatan
A charlatan is someone who pretends to have special knowledge or skills but is actually lying.
The fake doctor was exposed as a charlatan.
This word is more advanced and often used in formal English.
7. Fabricator
A fabricator invents stories or facts.
He’s a fabricator who creates dramatic stories to get attention.
This word focuses on inventing false information.
8. Two-Faced Person
A two-faced person says different things to different people, often dishonestly.
She acts friendly, but she’s really two-faced.
This phrase is informal and commonly used in conversation.
9. Con Artist
A con artist (short for “confidence artist”) tricks people into trusting them in order to lie or steal.
The con artist promised easy money and disappeared with their savings.
This word is common in crime-related contexts.
10. Trickster
A trickster deceives others, sometimes playfully and sometimes seriously.
He’s a trickster who enjoys fooling his friends.
This word can have a lighter meaning, depending on context.
11. Snake
Snake is informal slang for a dishonest or untrustworthy person.
I trusted him, but he turned out to be a snake.
This word is very informal and can sound emotional.
12. Manipulator
A manipulator lies or controls situations to influence others for personal gain.
He’s a skilled manipulator who twists the truth.
This word focuses on controlling behavior through dishonesty.
Comparison Table
| Word | Formality | Common Use | Focus |
|---|---|---|---|
| Liar | Neutral | Everyday speech | General lying |
| Pathological liar | Formal | Psychology/serious talk | Chronic behavior |
| Compulsive liar | Neutral | Everyday & formal | Uncontrolled habit |
| Deceiver | Formal | Writing/literature | Misleading others |
| Fraud | Formal | Legal/business | Financial cheating |
| Charlatan | Formal | Professional deception | Fake expertise |
| Con artist | Informal | Crime context | Scams |
| Two-faced | Informal | Conversation | Hypocrisy |
How to Choose the Right Word
When choosing the correct word, think about:
- Formality: Are you writing an academic essay or speaking with friends?
- Seriousness: Is the lie harmless or criminal?
- Habit: Is the person lying once or constantly?
- Intent: Are they trying to control, impress, or steal?
For example:
If someone lies to get money, “fraud” or “con artist” may fit best.
If someone lies constantly for no reason, “compulsive liar” may be more accurate.
Quick Summary
- Liar is the most common and direct term.
- Pathological and compulsive liar describe repeated, habitual lying.
- Fraud and con artist relate to financial deception.
- Charlatan describes fake experts.
- Two-faced and snake are informal and emotional.
- Choose words based on context, tone, and seriousness.
Conclusion
Describing someone who always lies requires careful word choice. Some words are casual, while others are formal or even legal. By understanding the differences between terms like “liar,” “compulsive liar,” “fraud,” and “charlatan,” you can communicate more precisely and confidently.
Expanding your vocabulary not only improves your English but also helps you express subtle differences in meaning. The next time you need to describe dishonest behavior, you’ll have the perfect word ready.