Many writers pause over whether to write definately or definitely. You’re not alone this mistake is so common that it appears in social media posts, emails, and even some published content.
The confusion usually comes from how the word sounds when spoken. The i and a sounds can trick your brain into spelling it wrong.
The Quick Answer
- ✅ Definitely → correct
- ❌ Definately → incorrect
There’s no alternative spelling in standard English. “Definately” is always a misspelling, no matter where you are writing.
Why “Definitely” Is Tricky
“Definitely” has a few pronunciation quirks that make it confusing:
- The middle syllable sounds like -nət- or -nɪt-, so some people think it should be spelled with an a.
- English spelling doesn’t always match pronunciation, which is why errors like this happen.
Meaning of “Definitely”
“Definitely” is an adverb that means:
- Without doubt
- Certainly
- Positively
Examples:
- I will definitely attend the meeting tomorrow.
- She is definitely the best candidate for the job.
- We are definitely going on vacation this summer.
Notice how strong and certain this word sounds it emphasizes clarity.
Real-Life Examples
Here’s how “definitely” appears naturally:
- “Are you coming to the party?” → “Yes, I’m definitely coming!”
- The new software update is definitely faster than the old version.
- He is definitely someone you can trust.
Compare that to definately, which will always be flagged as a spelling error in professional writing or on digital platforms.
Quick Comparison Table
| Feature | Definitely ✅ | Definately ❌ |
|---|---|---|
| Correct spelling | ✔️ Yes | ❌ No |
| Part of speech | Adverb | ❌ Incorrect |
| Meaning | Without doubt, certainly | ❌ None |
| Common mistakes | ❌ Rare | ✔️ Very common |
| Professional use | ✔️ Safe | ❌ Avoid |
Practical Tips to Remember
- Chunk the word: Break it down into “def-i-nite-ly.”
- Think of the root word: It comes from definite, so the spelling carries over.
- Use mnemonics: Remember: “I am definitely sure,” the i helps you remember the correct spelling.
- Read it aloud: If it sounds like “def-i-nit-ly,” you’re likely spelling it correctly.
Fun Fact
The word “definitely” comes from the adjective definite, which means clear or precise. Adding -ly turns it into an adverb, meaning “in a definite way” or “without doubt.”
So, definitely literally means “without doubt”—and ironically, there’s no doubt that definately is wrong!
Common Mistakes to Avoid
- Writing definately in emails or professional content
- Typing too quickly and ignoring spelling checks
- Confusing it with similar-sounding words like defiantly, which means boldly resisting or challenging
Quick Memory Check
Which sentence is correct?
- I will definately finish the project today.
- I will definitely finish the project today.
Correct answer: #2. #1 is a misspelling in all standard English contexts.
Conclusion
Definitely is one of those words that almost everyone misspells at some point. The key is remembering it comes from definite, and the i stays in the middle.
Avoid “definately” entirely especially in professional writing, school assignments, or published content. By breaking the word into syllables, connecting it to “definite,” and reading it aloud, you can lock in the correct spelling for good.