The social media network has halted plans for the cull after just one day following user backlash, and the system will be delayed until the company has a process for "memorialising" dead users on its website.
In a series of tweets on the Twitter Support account, the company said: "We've heard your feedback about our effort to delete inactive accounts and want to respond and clarify. Here's what's happening:
"This impacts accounts in the EU only, for now. We've always had an inactive account policy but we haven't enforced it consistently. We're starting with the EU in part due to local privacy regulations (eg, GDPR).
"We've heard you on the impact that this would have on the accounts of the deceased. This was a miss on our part.
"We will not be removing any inactive accounts until we create a new way for people to memorialise accounts."
The company has apologised for any "confusion and concern" as a result of the initial announcement, while admitting the "inactivity policy" could go further.
The statement continued: "Beyond complying with GDPR, we may broaden the enforcement of our inactivity policy in the future to comply with other regulations around the world and to ensure the integrity of the service. We will communicate with all of you if we do.
"We apologise for the confusion and concerns we caused and will keep you posted."