Forum › White Hat SEO › PPC › Google Ads – negative keyword for all queries containing a single keyword? › Reply To: Google Ads – negative keyword for all queries containing a single keyword?
Not sure why you would want to do that, but I think you just gave the answer yourself: just use exact match negative keywords.
As you mentioned, you won’t exclude all the variations in first instance, but then you just look at all your search terms, and exclude with exact match all the single keyword search terms.
After a number of iterations you should get pretty close to have excluded all single keywords.