A coin that has been listen on Coinmarketcap , Can that coin still be call a dead coin too.
Absolutely. CoinMarketCap simply lists every coin or token which is or was listed on any exchange, regardless of its legitimacy, use case, development, volume, or any other attribute. They openly state that they "over-provide" data (i.e. list a bunch of dead/shit coins):
Our view is that we should always over-provide data (as opposed to censoring and policing information) and let our users draw their own conclusions.
If you visit CoinMarketCap and click on "Filters" and then "Volume (24h), enter "$10" in the right hand box and click "Apply", it will still display hundreds of coins. Any coin which has a global daily volume of a few dollars can safely be declared "dead".