Definitely Synonyms | Uses & Example Sentences
Definitely is an adverb that means “without doubt” or “in a definite way.” It can modify nouns, verbs, adjectives, other adverbs, or entire phrases.
Synonyms for definitely are:
- Certainly
- Undoubtedly
- Unquestionably
- Undeniably
- Absolutely
- Indubitably
- Clearly
- Surely
- Positively
- Without a doubt
- For sure
Synonyms for definitely
Some synonyms listed below are stronger matches than others. For example, “certainly” can be interchanged with definitely. However, using “for sure” may require some additional changes to the sentence.
The QuillBot Paraphraser can help you rewrite sentences so that you use synonyms for definitely correctly.
| Match | Synonym | Definitely example | Synonym example |
|---|---|---|---|
| Strongest | Certainly | He’s definitely smart enough for the job. | He’s certainly smart enough for the job. |
| Undoubtedly | James is definitely the best student in his class. | James is undoubtedly the best student in his class. | |
| Unquestionably | This is definitely the best restaurant in town. | This is unquestionably the best restaurant in town. | |
| Undeniably | Social media definitely benefits society, but it can be dangerous, too. | Social media undeniably benefits society, but it can be dangerous, too. | |
| Absolutely | I’m definitely sure about my decision. | I’m absolutely sure about my decision. | |
| Indubitably | This book is definitely going to become a classic. | This book is indubitably going to become a classic. | |
| Strong | Clearly | She definitely has talent. | She clearly has talent. |
| Surely | He will definitely finish the project on time. | He will surely finish the project on time. | |
| Positively | I can definitely say we’ll win tonight’s match. | I can positively say we’ll win tonight’s match. | |
| Weak | Without a doubt | Jane is definitely the best reporter on the team. | Jane is without a doubt the best reporter on the team. |
| For sure | I will definitely be there. | I will be there for sure. |
“Clearly,” “surely,” and “positively” are synonyms of definitely, but they express a slightly lower degree of certainty than definitely does.
“Indubitably” is very formal and not commonly used in modern English. On the other hand, “without a doubt” and “for sure” are informal expressions and should be avoided in formal writing.
Frequently asked questions about synonyms for definitely
- What’s a synonym for most definitely?
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The synonyms for “most definitely” are similar to the synonyms for definitely. They include:
- Most certainly
- Undoubtedly
- Unquestionably
- Undeniably
- Absolutely
- Indubitably
Use QuillBot’s free Paraphraser to find more synonyms like these.
- What’s a synonym in slang for definitely?
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Some synonyms in slang for the adverb “definitely” include:
- Def (definitely)
- Defo (definitely)
- Most def (most definitely)
- Fo sho (for sure)
Find more synonyms for definitely with QuillBot’s free Paraphraser.
- What are some antonyms of definitely?
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Some antonyms of the adverb “definitely” are:
- Doubtedly
- Doubtfully
- Dubiously
- Questionably
- Uncertainly
- Possibly
Use QuillBot’s free Paraphraser to find more antonyms like these or to find synonyms of definitely.
- How do you spell definitely?
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The correct spelling is definitely. Other spellings like definately or definitly are wrong.
A QuillBot Grammar Check can help you avoid this spelling mistake.
- Is definately a word?
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No, “definately” is not a word. It is a misspelling of the adverb definitely, which means “without doubt” or “in a definite way.”
A QuillBot Grammar Check can help you avoid spelling errors like this.
