Synonyms for Cloudy (same or very similar meaning)
WordNet sense 1 (lacking definite form or limits):
nebulous, nebulose
WordNet sense 2 (not clearly defined or easy to perceive or understand):
indistinct
WordNet sense 3 (darkened by clouds):
heavy, sullen, lowering
WordNet sense 4 (darkened with overcast):
dull
WordNet sense 5 (resembling a cloud):
nebular
WordNet sense 6 (filled or abounding with clouds):
overcast, clouded
WordNet sense 7 (filled or abounding with fog or mist):
foggy, hazy, misty
WordNet sense 8 ((of especially liquids) clouded as with sediment):
muddy, murky, turbid, mirky
WordNet sense 9 (not clear; not transmitting or reflecting light or radiant energy):
opaque
From the ODE community, based on WordNet
add/edit