Google Ads glossary
A negative keyword is a word or phrase that stops your ad from showing on searches that contain it.
A negative keyword is set like a regular keyword, but its rules differ.
A negative keyword does not cover synonyms or singular and plural forms: add each variant yourself.
Every click is billed, even one from a student, a job seeker or a browser. Without exclusions, you pay for searches that will never buy.
Negative keywords cut those clicks before they cost you. Should I Bid recommends a list of exclusions with every analysis. Watch out for words that are too broad, because they can also block your own keywords.
An accounting firm adds “jobs”, “internship” and “salary” as negative keywords. A search like “accountant internship” no longer triggers its ad, so it stops paying for clicks from job seekers.
Free tool: Negative keyword lists
The tool offers one common list and eight industry lists, ready to copy or export for Google Ads.
Official source: Google Ads Help: negative keywords