From The Collaborative International Dictionary of English v.0.48 :
Unripened \Unripened\ See ripened.From WordNet (r) 3.0 (2006) :
unripened adj 1: not fully developed or mature; not ripe; "unripe fruit"; "fried green tomatoes"; "green wood" [syn: green, unripe, unripened, immature] [ant: mature, ripe]