Odd vs That’s weird
When to use each in English, with meaning, register, and examples.
Odd
Top 1,000 (very common)B1adjective
That’s weird
InformalTop 2,000 (common)
Most formal: OddMost common: Odd
| Odd | That’s weird | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/ɒd/"]/🇺🇸 /["/ɑːd/"]/ | 🇬🇧 //ðæts wɪəd//🇺🇸 //ðæts wɪrd// |
| Meaning | Strange or unusual. | That is strange or unusual. |
| Example | It's odd how he always knows what I'm thinking. | The lights flickered, and I thought, 'That’s weird.' |
| Register | Neutral | Informal |
| How common | Top 1,000 (very common) | Top 2,000 (common) |
| CEFR level | B1 | - |
| Part of speech | adjective | |
| Collocations | be, feel, look, extremely, fairly, very, how odd, it is odd to think, something odd | That's weird timing, That's weird behavior, That's weird to say, That's weird, isn't it?, That’s weird for sure |
| Antonyms | even, normal, common | - |
| Common mistakes | Using 'odd' to describe something that is simply different but not strange., Confusing 'odd' with 'oddly', which is an adverb., 'Odd' used incorrectly in positive contexts when it should be neutral or negative. | Using in overly formal contexts., Confusing with 'That's strange' - similar but 'weird' has a stronger connotation., Not using the contraction (That's) - sounds more natural to shorten. |
| Usage notes | Use 'odd' to describe something that is not normal or makes you feel uneasy. It can refer to behavior, things, numbers, etc. Avoid using it in very formal situations. | Use when something feels odd or unexpected; appropriate in casual contexts but can seem unprofessional in formal settings. |
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Frequently asked questions: Odd vs That’s weird
What's the difference between Odd and That’s weird?
Odd: Strange or unusual. That’s weird: That is strange or unusual.
Which is more formal: Odd and That’s weird?
Odd is the most formal of these.
Which is more common: Odd and That’s weird?
Odd is the most common in everyday English.
Can you show an example of each?
Odd: It's odd how he always knows what I'm thinking. That’s weird: The lights flickered, and I thought, 'That’s weird.'
Can I use Odd and That’s weird interchangeably?
Not always. Odd and That’s weird are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.