n.

1. 剛長羽毛的小鳥；剛會飛的小鳥
2. 未經世故的（年輕）人；缺乏經驗的人
   Don't treat him too hard. He is just a fledgling.

   別對他作太多的要求，他只是個沒有經驗的人。

a.

1. 剛開始的；無經驗的

n.

1. a young bird that has just fledged.
2. [as modifier] denoting an inexperienced person or emergent system:
   fledgling democracies.