Not missed; of which nobody regrets the absence.(adjective)
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Use "unmissed" in a sentence
"He has fired Gen. Stanley McChrystal, his combat commander in Afghanistan, in such a way that not only will the general go unmissed but his name will likely soon be forgotten."
"He was not a man much given to public displays of angst and he retired largely unmissed and unlamented but he got that one dead right on April 22, 2008 at 8: 06 pm | Reply were doomed"
"At least once a year, I read a story of someone who was discovered dead days, weeks, months, and in one case, two years after passing, without family and unmissed by neighbors or tradespeople."