Search Result for "youngness": 
Wordnet 3.0

NOUN (1)

1. the opposite of oldness; 



The Collaborative International Dictionary of English v.0.48:

Youngness \Young"ness\, n.
   The quality or state of being young.
   [1913 Webster]


WordNet (r) 3.0 (2006):

youngness
    n 1: the opposite of oldness [ant: oldness]