Negative keyword lists in Google Ads: the shared list most Bangalore accounts never turn on

Negative keyword lists in Google Ads: the shared list most Bangalore accounts never turn on
A negative keyword list in Google Ads is a set of excluded search terms saved once and attached to every campaign that needs it, instead of typed separately into each one. Google's own documentation calls it a shared negative keyword list, and it lives in the account's shared library, not inside any single campaign. Most Bangalore accounts still add negatives one campaign at a time, which means the same irrelevant search gets blocked in one campaign and keeps quietly spending in the next.
What counts as a negative keyword list, and what doesn't
Adding a negative keyword straight into a campaign's own settings only stops that one campaign from showing for that term. A shared negative keyword list is a separate object, built once in the account's shared library, that can then be attached to as many campaigns as needed. Google's documentation on negative keyword lists describes exactly this: a list created a single time and applied across campaigns, so a term added to the list is excluded everywhere the list is attached, rather than just in the one campaign where someone happened to notice the problem.
Why one list beats retyping the same exclusion five times
A Bangalore clinic running separate campaigns for spine surgery, dermatology, and general consultations sees the same irrelevant searches, "free", "jobs", "salary", "course" turn up across all three. Typed as a campaign-level negative in one campaign, the term keeps spending in the other two until someone remembers to copy it across, which in a busy account rarely happens consistently. A shared list fixes the term once, and it is gone from every campaign the list touches, including campaigns launched after the list was created, as long as the new campaign gets attached to it.
What a negative keyword list does not catch
A negative keyword list is not a filter that blocks anything close to the term entered. Google's own documentation on negative keywords states plainly that negative keywords do not match close variants or other expansions the way ordinary keywords do, and it specifically advises adding plural forms, misspellings, and synonyms as their own separate entries when those also need blocking. Adding "surgeon" as a negative does not automatically block "surgeons" or "surgery consultation"; each needs its own line. That is the opposite of how a regular keyword behaves, and it is the detail that quietly breaks a negative list built in five minutes and never revisited.
Building the first version from the search terms report
The search terms report shows what someone typed before clicking an ad, not the keyword that matched it, and Google's own guide on finding negative keyword ideas walks through using this report as the source: sort by cost with zero conversions, and anything on that list unrelated to the business is a negative keyword candidate. For a new account with no history yet, a starting list of ten or fifteen obviously irrelevant terms, job-seeking language, free-service language, a competitor's name, gets the shared list working from day one instead of waiting for a month of wasted spend to accumulate before the first negative gets added. The same report also feeds Performance Max campaigns, which only gained this level of search term visibility in 2025, so a monthly pass through the search terms report is now worth doing for both campaign types at once rather than treating them as separate jobs.
How often the list needs a look
Google does not publish a fixed review schedule, because a shared negative list is only as current as the last time someone checked the search terms report against it. An account running live spend for months without a review will have accumulated whatever slipped through in that stretch, term by term. A monthly check against the search terms report is a reasonable minimum for a small Bangalore account; a business spending more, or running several campaign types at once, gets more out of checking every two weeks, since a new irrelevant search term costs money every day it goes unnoticed.
Studio Happens builds a shared negative keyword list into every Google Ads account it sets up for Bangalore clients, clinics, restaurants, and institutes among them, so the exclusion work starts on day one of a campaign rather than three months into one, once a client has already noticed the spend that never turned into an enquiry.
Frequently asked questions
What is the difference between a negative keyword and a negative keyword list?
A negative keyword is a single excluded term added to one campaign. A negative keyword list is a saved set of terms created once and attached to several campaigns at once, so an exclusion only has to be added a single time to cover all of them.
Do negative keywords block plural or misspelled versions of a term automatically?
No. Google's own documentation states that negative keywords do not match close variants, plurals, or misspellings automatically. Each version that needs blocking has to be added as its own separate negative keyword.
Where do I find the shared negative keyword list in a Google Ads account?
Under the account's shared library. A list created there can be attached to any campaign in the account, including campaigns set up later, as long as it is attached deliberately rather than assumed to apply automatically.
What is a reliable source for new negative keywords once a campaign is live?
The search terms report. Sorting it by cost with zero conversions shows which real searches spent money without producing a result, which is the most consistent source of new negative keyword candidates for an account already running.
Studio Happens, Bangalore's go-to affordable digital marketing partner, can help you get started today.
Written by Niranjan M Theroth
Founder at Studio Happens. I'm obsessed with creating marketing systems that turn good businesses into brands people can't ignore.