unripe (adj.)
- acerb
- acerbic
- adolescent
- advanced
- awkward
- budding
- callow
- crabbed
- dewy
- dry
- dumb
- empty
- empty-headed
- fledgling
- forward
- fresh
- gauche
- green
- groping
- growing
- half-baked
- hasty
- ignorant
- ill-considered
- ill-timed
- immature
- improper
- impulsive
- inane
- inappropriate
- inauspicious
- inconvenient
- inexpedient
- inexperienced
- infelicitous
- ingenuous
- innocent
- inopportune
- intact
- intrusive
- irrelevant
- juicy
- juvenile
- late
- malapropos
- minor
- naive
- nescient
- overhasty
- pickled
- precipitate
- precocious
- premature
- previous
- pungent
- raw
- ripening
- rushed
- sappy
- sec
- simple
- sour
- soured
- sourish
- tart
- tender
- tentative
- unacquainted
- unbefitting
- uncomprehending
- uncrystallized
- underage
- undeveloped
- unenlightened
- unfamiliar
- unfavorable
- unfit
- unfitting
- unfledged
- unformed
- unfortunate
- unhappy
- unilluminated
- uninformed
- uninitiated
- unintelligent
- unknowing
- unlucky
- unpracticed
- unpremeditated
- unprepared
- unpropitious
- unready
- unseasonable
- unseasoned
- unsuitable
- unsure
- unsweet
- unsweetened
- untimely
- untoward
- untried
- unversed
- vacuous
- vernal
- vinegarish
- vinegary
- virginal
- wrong
- youthful