Definition
What is a negative keyword?
A negative keyword is a term added to a Google Ads campaign to keep an ad from showing on searches that contain it. Unlike an ordinary keyword, it does not expand: not to synonyms, not to close variants and not to singular or plural forms, which have to be added one by one. It automatically accounts for capitalization and misspellings. It is the only restriction mechanism the advertiser keeps full control over.
How a negative keyword works
A negative keyword uses one of three match types, which do not behave the way they do for an ordinary keyword:
- Negative broad match blocks searches that contain all its words, in any order.
- Negative phrase match blocks searches that contain its words in the same order.
- Negative exact match blocks only the identical search.
Google gives the example itself: excluding “flowers” keeps the ad off “red flowers”, but not off the singular “red flower”.
Where to add a negative keyword
A negative keyword can be added at the account, campaign or ad group level. A negative keyword list built at the account level applies to eligible Search and Shopping inventory: it is the right level for terms that will never concern you, such as “free” or “jobs”. Exclusions specific to a product line stay at the campaign level.
Where to find the terms to exclude
The search terms report shows what people actually typed before clicking. It does not show everything: part of the paid searches stays hidden. The list is therefore completed by theme, built in advance from what the business does not sell.
A driving school buys the keyword “driving lessons”. In the search terms report, it finds “driving instructor job” and “free driving lessons”. It adds “job”, “jobs” and “free” to its account-level negative keyword list.
Had it excluded only “job”, a search for “driving instructor jobs” would have stayed eligible: the negative keyword does not pick up the plural.
We see negative keywords as the counterweight to an architecture that pushes toward spending. Positive keywords expand on their own (close variants, inflected forms, searches with the same intent); negative keywords never do. Everything that widens spend works without effort, and everything that restricts it takes regular manual work.
The raw material comes from sales, not from the ad account: the products you no longer sell, the requests you turn down, the regions you do not serve. A business that supplies ten terms it never wants to pay for recovers more budget than one that approves a new keyword list.
Not to be confused with
- Exact match keyword
- Exact match limits what triggers the ad, whereas a negative keyword blocks what must never trigger it. Even in exact match, an ordinary keyword covers close variants; a negative keyword does not.
- Excluded placement
- An excluded placement removes a site or an app where a display ad could show. It acts on where the ad is served, not on the search typed.
- Audience exclusion
- On Meta, an audience exclusion removes people based on their profile or behaviour. A negative keyword removes searches.
Related concepts
Further reading
- Google Ads keywords: the real lever is no longer the list, it is the exclusion
- The search terms report does not show you everything
- Google Ads: structure, exclude, measure
- Google Ads since August 17: your CPA or ROAS target is now an instruction, not a ceiling
- Part of your display budget is funding mobile game apps
Related services
Frequently asked questions
If I exclude a word, is its plural excluded too?
No. Google states that negative keywords do not match close variants or singular and plural forms. Excluding “flowers” does not stop the ad from showing on “flower”: each form has to be added by hand.
