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Use "overripen" in a sentence
"Granite is an acidic soil at altitude and this combination of very hot days and cool nights means the grapes don't overripen and produce too much sugar."
"This book, his greatest (though he claimed to prefer two of his more refined and ponderous works), is lovable enough, unsettling enough and dissatisfying enough -- altogether granular enough -- that I hereby make the following prediction: "Huckleberry Finn" will never overripen, nor grow stale, nor ossify."
"After medlars are picked they are stored calyx end down and allowed to overripen."