Quick answer: Both deliberate and intentional mean done on purpose, not by accident. However, deliberate adds the sense of careful thought and consideration: a deliberate choice implies not only that it was meant but that it was carefully weighed. Intentional simply means it was intended, with no implication of careful planning: an intentional foul means the foul was meant, not that it was carefully thought through. In many contexts the two are interchangeable. For a fuller definition, see the Cambridge Dictionary entry for ‘deliberate’.
Comparison Table
| Word | Part of Speech | Meaning | Example |
|---|---|---|---|
| deliberate | adjective / verb | (adj.) done consciously and intentionally; carefully considered; unhurried. (verb, stress on 2nd syllable) to think carefully before deciding | It was a deliberate act of sabotage. |
| intentional | adjective | done on purpose; with intent; not accidental | The error was intentional, not a mistake. |
Using Deliberate (Adjective)
As an adjective, deliberate means done with full awareness and careful thought. It often implies that someone weighed up their options before acting. It can also describe a slow, unhurried pace: she spoke in a slow, deliberate manner.
His rudeness was deliberate — he knew exactly what he was doing.
The company made a deliberate decision to enter the Asian market.
She moved with slow, deliberate steps across the ice.
The attack was described as a deliberate and unprovoked act of violence.
Using Deliberate (Verb)
As a verb (pronounced duh-LIB-er-ate), deliberate means to think carefully or discuss before reaching a decision. Note the stress shift: the adjective is pronounced de-LIB-er-it.
The jury deliberated for three days before reaching a verdict.
She deliberated carefully before accepting the offer.
Using Intentional
Intentional means simply that something was intended — there was a purpose or plan behind it, even if the action was impulsive or unplanned in detail. It does not carry the nuance of careful prior thought that deliberate implies.
The referee judged it an intentional handball.
Was the remark intentional or did you say it without thinking?
The data deletion was intentional, not the result of a software error.
The pun was completely intentional.
The Subtle Difference
The core difference: deliberate implies not only intent but also thought and consideration. Intentional implies only intent. Imagine someone in a moment of anger slamming a door. That could be intentional (they meant to slam it) but not necessarily deliberate (they did not calmly plan it). A carefully planned fraud, on the other hand, is both intentional and deliberate.
He slammed the door — it was intentional but impulsive.
The fraud was deliberate — planned meticulously over months.
Common Mistakes
The adjective is DEL-ih-ber-it and the verb is deh-LIB-er-ate. They are spelled the same but pronounced differently. Do not write “She deliberated the decision” when you mean “She made a deliberate decision.” Deliberate on (or about) something means to think carefully about it; a deliberate decision is one that results from such thought.
✗ In a rage, he deliberately threw the cup. (implies calm planning)
✓ In a rage, he intentionally threw the cup. (simply meant to do it)
✗ She walked with slow, intentional steps.
✓ She walked with slow, deliberate steps.
Note: deliberate in this context means unhurried and measured, not merely intended.
Memory Tip
Think of DELIBERATE as related to DELIBERATION — the careful weighing-up process a jury goes through. If you “deliberate” something, you think it through carefully. INTENTIONAL relates to INTENTION — a plan or purpose, without the idea of careful thought necessarily being involved.
Also worth exploring: Decide vs Determine, Choose vs Decide, Careful vs Cautious. Browse all confusing word pairs →
Deliberate or Intentional?
Three questions — choose the correct word for each sentence.
1. “It was a ___ act of sabotage.” (carefully considered, not accidental)
2. “The error was ___, not a mistake.” (done on purpose, simply)
3. Which word adds the sense of careful thought, beyond just being on purpose?
Frequently Asked Questions
What is the difference between deliberate and intentional?
Both mean done on purpose, not by accident. Deliberate adds the nuance of careful thought and consideration before acting — it implies a conscious, considered choice. Intentional simply means it was intended, without necessarily implying careful prior planning. In many contexts they are interchangeable, but deliberate is the stronger, more emphatic word.
Can deliberate and intentional be used interchangeably?
In most contexts, yes — both contrast with accidental or unintentional. The distinction matters when the degree of planning is relevant. A snap decision that was nevertheless on purpose is better described as intentional. A carefully thought-out plan that was then executed purposely is both deliberate and intentional.
What does deliberate mean as a verb?
As a verb (pronounced deh-LIB-er-ate), deliberate means to consider carefully or to discuss something before making a decision. “The jury deliberated for four hours.” “She deliberated over which offer to accept.” The verb always implies a process of careful thought, which is why the adjective carries the same implication.
What is the adverb form of deliberate?
The adverb form is deliberately: “He deliberately ignored the warning signs.” This implies conscious, considered choice. The adverb of intentional is intentionally: “She intentionally left the door open.” Both adverbs mean ‘on purpose’ but deliberately implies more thoughtfulness.
What is the opposite of deliberate?
The opposite of deliberate (adjective) can be accidental, unintentional, impulsive, or spontaneous depending on which aspect you are contrasting. Accidental and unintentional contrast with the “on purpose” sense. Impulsive and spontaneous contrast with the “carefully considered” sense.
What is the noun form of deliberate?
The noun form is deliberation: “After much deliberation, she accepted the offer.” In a legal context, “jury deliberations” refers to the process of the jury discussing and deciding on a verdict. The adjective form is deliberate, and the adverb is deliberately.
What is the noun form of intentional?
The noun form is intention (or intent): “Her intention was to help, not to cause harm.” In law, intent is crucial: “The prosecution must prove criminal intent.” The adverb is intentionally. The noun intentionality is used in philosophy to describe the “aboutness” of mental states.
Does deliberate have a meaning related to slowness?
Yes. Deliberate can mean slow, unhurried, and careful in movement or speech: “She spoke in a deliberate, measured tone.” “He moved with deliberate slowness.” This sense connects to the idea of careful thought — someone being deliberate in their movements is taking their time, not rushing.
How are deliberate and intentional used in legal contexts?
In law, both deliberate and intentional are used to describe acts committed with awareness and purpose. Intentional wrongdoing refers to acts done on purpose rather than negligently. Deliberate malice implies a higher degree of planning and callousness. The specific legal definition varies by jurisdiction, but both terms contrast with accidental or negligent acts.
How do deliberate and intentional appear in IELTS writing?
In IELTS Task 2, you might write: “Deliberate deforestation for agricultural gain poses a serious environmental threat.” Or: “Some argue that price increases by supermarkets are intentional rather than market-driven.” Using either word correctly shows a strong command of vocabulary that distinguishes purposeful acts from accidental ones.