Wordnet 3.0
ADJECTIVE (1)
1. 
 characteristic of a puppy; 
[syn: puppyish, puppylike]
The Collaborative International Dictionary of English v.0.48:
Puppyish \Pup"py*ish\, a.
   Like a puppy.
   [1913 Webster]
WordNet (r) 3.0 (2006):
puppyish
    adj 1: characteristic of a puppy [syn: puppyish, puppylike]