Negative keyword
negative keywords / negative match / excluded keyword
A negative keyword stops your ad from showing on searches that contain it. It is the main tool for cutting wasted spend. The catch is that negatives do not expand the way normal keywords do: Google says they will not match close variants, so plurals and misspellings need adding by hand.
A negative keyword is an instruction not to show your ad when somebody searches a particular word. Google describes them as a way to exclude search terms so you can focus on the keywords that matter to your customers. In a real account they are the cheapest improvement available, because every block is money that stops leaving.
Here is the trap, and it is the reason accounts leak for years. Negative keywords do not behave like the keywords you bid on. Google states directly that negative keywords will not match to close variants or other expansions, and that you need to add synonyms and singular or plural versions yourself if you want those excluded too. Your positive keywords quietly expand to catch near misses. Your negatives do not. Block the word free and you have not blocked freebie. Block job and you have not blocked jobs.
The match types are worth knowing because the default is not the same everywhere. Google offers negative broad, negative phrase and negative exact for Search campaigns. Microsoft documents two, exact and phrase, and says phrase match is its default. So the same list of words pasted into both platforms does not necessarily block the same searches.
Microsoft also flags a failure worth checking for. Its reporting includes a negative keyword conflict report, because a word added as a negative while also being used as a keyword cancels that keyword out. An account can be bidding on a term and blocking it at the same time.
In practice
A law firm that only handles business disputes adds free, salary and job as negatives after seeing them in the search terms report. Spend drops and inquiries hold steady, which is the outcome you want. A month later the report shows jobs, free consultation and internships still costing money, because none of those were covered by the three words already on the list.
Not the same as
- Pausing a keyword
- Pausing stops you bidding on a term. A negative stops your ad appearing on searches containing it, including searches you never chose.
- Audience exclusions
- Those exclude people. Negative keywords exclude words.
Why it matters to you
Negative keywords are the clearest evidence that somebody is actually tending your account rather than letting it run. The list should grow every month, because searches change every month. A negative list that has not been touched since setup is a reasonable thing to ask about.
What to ask or check
- 01When was a negative keyword last added to my account, and what prompted it?
- 02Are plurals, misspellings and synonyms of my main exclusions on the list?
- 03Is anything on the negative list also being bid on as a keyword?
What people get wrong
That blocking a word blocks its variants too. It does not. Google says negative keywords will not match close variants, so every plural, synonym and common misspelling has to be added by hand.
Red flags
- A negative keyword list that has not changed since the account was set up.
- An account where the same term appears both as a keyword and as a negative, which cancels it out.