tender (adj.) 2
immature, undeveloped, inexperienced
AYL I.i.121 [Charles to Oliver, of Orlando] Your brother is but young and tender
R2 II.iii.42 [Percy to Bolingbroke] I tender you my service, / Such as it is, being tender, raw, and young
TG III.i.34 [Duke to Proteus] tender youth is soon suggested
Ven 1091 [of Adonis] in pity of his tender years