Negative match types are the three settings that control which searches a negative keyword blocks in Google Ads: negative broad, negative phrase and negative exact. They use the same symbols as ordinary keyword match types, but they behave far more literally, and that difference catches out a lot of advertisers.
How negative match types work
You set the type with the same notation as a normal keyword: no symbols for negative broad, quotation marks for negative phrase, square brackets for negative exact. What changes is how strictly Google reads them. A positive keyword can match close variants, synonyms and related meanings. A negative keyword matches only the words you type. It does not stretch to plurals, misspellings or alternative phrasings.
| Type | Written as | Blocks a search when | Example blocked | Example not blocked |
|---|---|---|---|---|
| Negative broad | plumbing course | every word appears, in any order | course in plumbing near Leeds | plumbing courses (plural) |
| Negative phrase | “boiler manual” | the words appear together in that order, with anything before or after | combi boiler manual pdf | manual for my boiler |
| Negative exact | [plumber] | the search is exactly that, with nothing added | plumber | emergency plumber leeds |
A single-word negative broad keyword, such as jobs, blocks any search containing that word. That makes it the most useful tool for words that always signal the wrong intent, whatever surrounds them.
Why it matters
Choosing the wrong type fails in one of two directions. Too loose, and money leaks to searches you meant to exclude. Too tight, and you block searches that would have turned into customers, and you never see them, because a blocked search leaves no trace in the search terms report. A London family solicitor who adds free as negative broad to avoid “free legal advice” searches also blocks “family solicitor free initial consultation”, which may be the most valuable search the firm sees if it offers one. A negative phrase of “free legal advice” fixes the first problem without causing the second.
Because negatives ignore close variants, a list that looks complete often is not. Excluding apprenticeship leaves apprenticeships and the common misspelling apprentiship free to trigger ads until someone adds them.
Common mistakes
- Expecting negative broad to work like positive broad match and block related meanings. It blocks only searches that contain every word.
- Using a one-word negative exact, which blocks only searches made of that word alone, and then wondering why longer searches containing it still appear.
- Forgetting plurals and frequent misspellings of each negative.
- Adding a long multi-word negative broad and assuming it blocks searches containing any one of the words. It needs all of them.
- Pasting a list in from a spreadsheet and losing the brackets or quotation marks, so every negative becomes broad.
How to act on it
Work from the search terms report. For each search you want to stop, ask what pattern is actually wrong:
- A single word that is always wrong for you (jobs, salary, DIY): negative broad on that word.
- A specific combination where the words alone are fine (“free legal advice”, “second hand”): negative phrase.
- One exact search that wastes money while longer versions of it convert: negative exact.
Add the plural and any misspellings you see, then save recurring exclusions into a negative keyword list so every relevant campaign gets them. Choosing match types for both keywords and negatives is a core part of my Google search ads management.