From BiblePortal Wikipedia

King James Dictionary [1]

Unri'Pe, a.

1. Not ripe not mature not brought to a state of perfection as unripe fruit. 2. Not seasonable not yet proper.

He fix'd his unripe vengeance to defer.

3. Not prepared not completed as an unripe scheme. 4. Too early as the unripe death of Dorilaus. Unusual.

Webster's Dictionary [2]

(1): ( a.) Developing too early; premature.

(2): ( a.) Not ripe; as, unripe fruit.