underripe
/ˌʌndərˈraɪp/
adjective
- Not fully ripe; still too firm or green to be eaten or used.
- She picked an underripe avocado and had to wait three days for it to soften.
- The underripe bananas were too hard to peel and tasted sour.
- Underripe tomatoes are often used in cooking because they hold their shape better.