When your so depressed you dont care about anything anymore and become dead on the inside thus dead inside, its pretty much another way of saying clinical depression
No longer care about people or yourself ..(dead inside)
by Mr Sparda February 19, 2007
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If someone is "dead inside" they have no feelings,emotions or anything of that sort.

It is an adjective (describing word) It can be used as an insult.
by DanTheManWithThePlanYetWithout November 19, 2018
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Dead inside is the state of when one can't be bothered getting out of bed or even turning on their phone
Guy: yo what's up
Thomas Twaits: stop I'm dead inside
via giphy
by Gwhwuy July 31, 2017
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