Cool MateDefinitely vs Without a doubt
When to use each in English, with meaning, register, and examples.
Definitely
Top 1,000 (very common)A2adverb
Without a doubt
Top 2,000 (common)
Most common: Definitely
| Definitely | Without a doubt | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/ˈdefɪnətli/"]/🇺🇸 /["/ˈdefɪnətli/"]/ | 🇬🇧 //wɪˈðaʊt ə daʊt//🇺🇸 //wɪˈðaʊt ə daʊt// |
| Meaning | For sure, without a doubt | Definitely true; no question about it. |
| Example | I definitely remember sending the letter. | She is, without a doubt, the most talented singer in the group. |
| Register | Neutral | Neutral |
| How common | Top 1,000 (very common) | Top 2,000 (common) |
| CEFR level | A2 | - |
| Part of speech | adverb | |
| Collocations | definitely agree, definitely believe, definitely know | believe without a doubt, know without a doubt, say without a doubt |
| Antonyms | doubtfully, uncertainly | - |
| Common mistakes | Often confused with 'defiantly' which means resisting authority., Sometimes spelled incorrectly as 'definately'. | Used with incorrect verb forms (e.g., 'Without a doubt, he is the best.' should be 'Without a doubt, he is the best choice.'), Often confused with similar phrases like 'without question,' which can have a slightly different tone. |
| Usage notes | Use 'definitely' to emphasize certainty. It fits well in both spoken and written English. Avoid using it in overly formal contexts where alternatives like 'certainly' might be more suitable. | Used to express strong certainty. Suitable for both spoken and written forms. Avoid in overly formal contexts. |
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Frequently asked questions: Definitely vs Without a doubt
What's the difference between Definitely and Without a doubt?
Definitely: For sure, without a doubt Without a doubt: Definitely true; no question about it.
Which is more common: Definitely and Without a doubt?
Definitely is the most common in everyday English.
Can you show an example of each?
Definitely: I definitely remember sending the letter. Without a doubt: She is, without a doubt, the most talented singer in the group.
Can I use Definitely and Without a doubt interchangeably?
Not always. Definitely and Without a doubt 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.