Wordnet 3.0
ADVERB (1)
1.
in a clammy manner;
The Collaborative International Dictionary of English v.0.48:
Clammily \Clam"mi*ly\, adv.
In a clammy manner. "Oozing so clammily." --Hood.
[1913 Webster]
WordNet (r) 3.0 (2006):
clammily
adv 1: in a clammy manner