1. most unripe; least mature or developed
Usage: superlative form of unripe

Examples

• She picked the unripest tomatoes from the vine to let them ripen indoors.
• The unripest bananas were still completely green.
• Among all the fruit, these were the unripest and hardest.
• The farmer separated the unripest apples from the harvest.
• Even the unripest peaches showed promise of sweetness to come.