Wordnet 3.0
ADJECTIVE (1)
1. 
 not frozen; 
- Example: "unfrozen ground"
The Collaborative International Dictionary of English v.0.48:
Unfrozen \Unfrozen\
   See frozen.
WordNet (r) 3.0 (2006):
unfrozen
    adj 1: not frozen; "unfrozen ground" [ant: frozen]
Moby Thesaurus II by Grady Ward, 1.0:
23 Moby Thesaurus words for "unfrozen":
   aestival, blood-hot, blood-warm, calid, equatorial, genial, luke,
   lukewarm, mild, room-temperature, subtropical, summery, sunny,
   sunshiny, temperate, tepid, thermal, thermic, toasty, tropical,
   warm, warm as toast, warmish