overmaturity
/ˌəʊvəməˈtʃʊərɪti/ /ˌəʊvəməˈtjʊərɪti/ /ˌəʊvəməˈtʃɔːrɪti/Chiefly Science
noun
The condition which results from passing beyond the mature state; the state of being overmature.
Origin
Late 19th century; earliest use found in Science. From over- + maturity.