"mistiest" in the adjective sense
1. brumous, foggy, hazy, misty
filled or abounding with fog or mist
"a brumous October morning"
2. misty
wet with mist
"the misty evening"
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License