Wiktionary
a. Not grown; immature.
Usage examples of "ungrown".
I am lovesick, and ungrown, and know no trope or toponymic topoi, no image worthy.
You know, it takes you by surprise, how you secretly weary of the ungrown state, the childless, the childish state.
But where the silver-sandalled shadows are, Too soft for arrows of the sun to mar, Moves with the mild gait of an ungrown moon.
Erewhile he eastward went, Escaping from Odoaker, Thither with Theodoric And his many men of battle, Here he left in the land, Lorn and lonely, Bride in bower, Bairn ungrown, Having no heritage.
Only ungrown dates, tiny and green and still vulnerable to the sand winds, seemed created from a brighter scheme altogether.
On the other hand, the true theory of humanity presents us with a race brought into this world for its education, starting with moral and intellectual infancy, and liable to all the mistakes, weaknesses, and follies, which an ungrown and inexperienced nature begets.