unseasoned (adj.)

• adolescent
• budding
• callow
• dewy
• fledgling
• fresh
• green
• growing
• half-baked
• ignorant
• immature
• inexperienced
• ingenuous
• innocent
• intact
• juicy
• juvenile
• minor
• naive
• raw
• ripening
• rusty
• sappy
• tender
• unaccustomed
• underage
• undeveloped
• unfledged
• unformed
• unhardened
• unpracticed
• unripe
• untrained
• untried
• unused
• unversed
• unwonted
• vernal
• virginal
• weaned
• young