Quick answer: Purposely means "on purpose", i.e., intentionally rather than accidentally: He purposely broke the vase. Purposefully means in a determined, resolute, or focused manner, describing how something is done: She walked purposefully toward the exit. Purposely answers "was it deliberate?"; purposefully answers "with what manner or determination?" For a fuller definition, see the Cambridge Dictionary entry for ‘purposely’.
Comparison Table
| Word | Part of Speech | Meaning | Example |
|---|---|---|---|
| purposely | adverb | on purpose, intentionally, deliberately (not by accident) | She purposely left early to avoid traffic. |
| purposefully | adverb | in a determined, resolute, focused manner | He strode purposefully across the stage. |
Using Purposely
Purposely describes intent — it tells you an action was deliberate, not accidental. It usually answers the question "Did they mean to do that?"
He purposely ignored her calls all day.
The mistake in the report was made purposely to test the reviewers.
She purposely avoided mentioning the delay.
They purposely scheduled the meeting for a quieter time.
Using Purposefully
Purposefully describes the manner of an action — showing determination, focus, or a clear sense of goal, rather than whether the action itself was intentional.
She moved purposefully through the crowded station.
He worked purposefully to finish the project ahead of schedule.
The dog trotted purposefully toward its bowl.
They spoke purposefully, determined to reach an agreement quickly.
Memory Trick
PurposeLY is short, like a quick decision — "on purpose", answering why. PurposeFULLY is longer, "full of" determination — describing how, with focus and resolve.
Common Mistakes
✗ He purposefully spilled the coffee to get attention.
✓ He purposely spilled the coffee to get attention.
✗ She walked purposely towards her goal, full of determination.
✓ She walked purposefully towards her goal, full of determination.
Tips to Avoid Confusion
- Ask: was this deliberate, not accidental? Use purposely.
- Ask: was this done with determination or focus? Use purposefully.
- Purposely often pairs with negative or mischievous actions (purposely broke, purposely ignored).
- Purposefully often describes movement or work with visible determination (walked, worked, strode purposefully).
For more on related grammar, see adverbs. Also confusing: Although vs Though, Also vs Too, As vs Like. Browse all confusing word pairs →
Quick Check: Purposely or Purposefully?
4 fill-in-the-blank questions — choose the correct word for each sentence.
1. “He ___ forgot to invite her, just to be spiteful.” (deliberate)
2. “She strode ___ into the boardroom, ready to negotiate.” (determined)
3. “They ___ delayed the announcement until after the vote.”
4. “He worked ___ through the night to meet the deadline.”
Frequently Asked Questions
What is the difference between purposely and purposefully?
Purposely means on purpose, intentionally rather than accidentally: "He purposely broke the vase." Purposefully means in a determined, resolute manner: "She walked purposefully toward the exit." Purposely answers whether an act was deliberate; purposefully describes the manner or attitude behind an action.
Can something be done both purposely and purposefully?
Yes: "He purposely (deliberately) left his phone at home, and purposefully (determinedly) focused on his work all day." The two words can combine to describe both the intent and the manner of related actions.
Is purposely the opposite of accidentally?
Yes — purposely is essentially the opposite of accidentally or unintentionally: "I purposely left the door open" means it was not an accident. Purposefully does not have this same clear opposite relationship with accidentally.
Can purposefully describe someone doing something wrong?
It's unusual — purposefully generally has a positive or neutral connotation of determination and focus, whereas actions with negative intent (like sabotage or mischief) are more often described with purposely.
Which word is more common in everyday speech?
Purposely is generally more common in everyday speech about intentional (often mischievous or deliberate) actions. Purposefully appears more often in descriptive or literary writing about someone's manner or bearing.
What is the adjective form these adverbs come from?
Purposely comes from the noun 'purpose' plus '-ly'. Purposefully comes from the adjective 'purposeful' (having or showing determination) plus '-ly'. This explains why purposefully is longer — it has an extra layer of suffix.
Can 'on purpose' replace 'purposely'?
Yes, exactly: "He did it on purpose" means the same as "He did it purposely." This is a useful test — if "on purpose" fits naturally, purposely is usually the right word, not purposefully.
What is a common exam mistake with these words?
Learners often write "purposefully" when they simply mean "deliberately/on purpose", e.g., "She purposefully missed the bus to avoid him" — this is understandable but less precise; "purposely" more directly conveys plain deliberate intent without implying determined focus.
Give a sentence contrasting both words clearly.
"He purposely arrived late to annoy his boss, then purposefully avoided eye contact throughout the meeting." Here purposely shows the deliberate lateness (not an accident), and purposefully shows the determined manner of avoiding eye contact.
How can I remember purposely vs purposefully?
Purpose-LY is short — think of a quick yes/no: was it on purpose? Purpose-FULLY is 'full of' purpose — think of someone acting with visible determination and focus. Purposely = deliberate; purposefully = determined manner.