What are negative keywords?
Negative keywords are a key tool in keyword advertising that you use to control when your ads don't appear. While positive keywords tell Google Ads which searches you want your ads to appear for, negative keywords do the exact opposite: they exclude specific words or phrases, so you avoid impressions that aren’t valuable to your business. This gives you more control over who sees your messages and how your ad budget is spent.
In other words, negative keywords help you keep your targeting precise. When working with digital advertising, it’s not just about attracting as many clicks as possible, but about attracting the right clicks. Negative keywords therefore play an important role in both campaign strategy and optimization—especially when combined with your overall SEM strategy and ongoing analysis of search terms.
How do you use negative keywords?
You can add negative keywords directly in your Google Ads account at the campaign or ad group level. This tells the platform that searches containing the selected words or phrases should not trigger your ads. For example, these might be words like “free,” “used,” or “cheap” if you’re working with premium products and want to avoid users who are only looking for low prices.
It’s important to regularly review your search term report to identify new keywords that don’t align with your goals. You can also use data from your SEO or content marketing efforts, since organic search data often reveals which searches don’t lead to actual conversions. By proactively applying these insights, you’ll optimize both your paid traffic and your overall digital visibility.
That's why you should use negative keywords
Negative keywords improve your ad performance in several ways. They help you avoid wasted clicks that can drain your budget, while also strengthening the relevance of your ads. When your ads are shown only for the most relevant searches, both your click-through rate and conversion rate increase. This means you get more value out of your ad spend because you’re reaching users with a clear intent.
In addition, you protect your brand from unwanted associations. Imagine that you’re marketing exclusive furniture, but your ads appear in search results for terms like “cheap sofas” or “used dining tables.” That sends the wrong message. Negative keywords help you avoid that kind of misunderstanding and ensure that your brand is presented in line with your desired positioning.
You can also use negative keywords as a tool to structure your campaign strategy. Combined with smart bid adjustments and ad extensions, you can use them to distinguish between different search intents and create more focused ad groups that precisely target the segment you’re aiming for.
What types and varieties are available?
Google Ads uses three basic types of negative keywords, which determine how strict your exclusions are:
- Broad negative match – the default setting, where your ad won't appear if the search includes all the words from the negative keyword in any order.
- Negative phrase match – a more precise match where the search must contain the exact word order of your negative search phrase to be excluded.
- Negative exact match —the most restrictive type, where the ad is excluded only if the search query matches your negative keyword exactly, without any additional words.
These three match types give you the flexibility to adjust your strategy based on the campaign’s objectives. A broad match can be useful in the early stages, when you want to avoid obviously irrelevant searches, while exact match is a better fit if you want to fine-tune an already optimized campaign.
How do you use negative keywords in practice?
The best place to start is with a simple analysis of your search term report in Google Ads. Here, you can see which searches trigger your ads but don’t lead to clicks or conversions. These keywords are obvious candidates for your negative keyword list. You can also group negative keywords into thematic lists that you can reuse across campaigns—for example, “price-related,” “job-related,” or “informational searches.”
Example:
Also consider how your negative keywords interact with your overall advertising strategy. If you’re working with both SEM and social ads, you can use insights from both channels to identify patterns in search behavior. Users often move across platforms, so data from social media marketing can provide useful insights into which terms you should exclude from your search ads.
What should you keep in mind?
The most important thing is to keep your negative keyword strategy dynamic. Search behavior is constantly changing, and words that were relevant to exclude six months ago may suddenly drive valuable traffic. Therefore, establish regular routines for reviewing and updating your lists. You should also test the differences between the various match types so you don’t exclude too broadly and lose potential customers.
A good tip is to combine your work with negative keywords with ongoing campaign analysis and ad copy optimization. That way, you ensure that your entire Google Ads effort works together—from keywords and targeting to messaging and landing pages. When everything is aligned, you use your budget more effectively, and your results become both more predictable and more measurable.
