ichidan verb
become overripe; get too ripe
Describes fruit or vegetables that have passed the ideal stage of ripeness, becoming too soft or starting to spoil.
バナナが熟れ過ぎて黒くなった。
The bananas got overripe and turned black.
この桃は熟れ過ぎているから、すぐに食べたほうがいい。
This peach is overripe, so you'd better eat it soon.