Objective means based on facts that can be checked and would stay true no matter who was looking — "the objective figures show a 12% drop". Subjective means filtered through personal feeling, taste or experience — "which painting is best is entirely subjective". If two honest people could reasonably disagree and neither be wrong, it is subjective.
The core difference
Both words describe where a statement gets its authority. An objective claim points outwards, at something measurable: a temperature, a date, a total. Anyone with the same access to the evidence should reach the same answer. A subjective claim points inwards, at the person making it: their taste, mood, values or vantage point. Change the person and the claim can change with them.
Note that subjective is not an insult. Grief, flavour, comfort and beauty are genuinely subjective, and saying so is accurate rather than dismissive.
Using objective
- "We need an objective measure of whether the training worked."
- "Try to stay objective when you read your own writing."
- "The objective facts of the case were never in dispute."
Objective also works as a noun meaning aim or goal — "our objective this quarter is to cut waiting times" — which is a separate sense and never means the opposite of subjective.
Using subjective
- "Pain is subjective, so we ask patients to rate it themselves."
- "The scoring turned out to be more subjective than the rules suggested."
- "That is a subjective preference, not a fault in the design."
The test you can run
Ask: could this be settled by checking? If a thermometer, a document, a count or a recording would end the argument, the matter is objective. If the only way to settle it is to ask people how they feel, it is subjective.
A second test works on the sentence itself. Try swapping in unbiased or fact-based; if the sentence still means what you intended, objective is right. Try swapping in personal or a matter of opinion; if that fits, use subjective.
Memory trick
Subjective contains subject — it belongs to the subject, the person doing the perceiving. Objective contains object — it belongs to the thing out there being perceived.
The common mistake
Writers often call something objective when they mean they feel strongly about it. "Objectively the best album of the decade" is a subjective claim wearing a lab coat; the word adds emphasis, not evidence. In careful writing, reserve objectively for statements you could actually produce evidence for.
The reverse error is treating a measurable question as subjective to avoid an argument. Whether a deadline was missed is objective, however uncomfortable the answer is.
Finally, watch the noun forms: objectivity and subjectivity both describe the stance, not the content. A report can be written with objectivity and still be about subjective experiences.
Frequently Asked Questions
Is "objectively speaking" ever correct?
Yes, when what follows can genuinely be verified — "objectively speaking, the second version loads faster" is fine if you have the timings. It is misused when it fronts a matter of taste, where it just means "I feel strongly about this".
Can a review be objective?
Partly. The verifiable parts — running time, price, battery life, what the product does — can be objective. The verdict is subjective by nature, and good reviewers make clear which is which rather than pretending the whole piece is fact.
Does subjective mean unreliable?
No. It means dependent on the person, not that it is wrong. A patient's subjective report of their symptoms is often the most important evidence a doctor has.