"unsafest" in the adjective sense
1. insecure, unsafe
lacking in security or safety
"his fortune was increasingly insecure"
"an insecure future"
2. dangerous, unsafe
involving or causing danger or risk liable to hurt or harm
"a dangerous criminal"
"a dangerous bridge"
"unemployment reached dangerous proportions"
3. insecure, unsafe
not safe from attack
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License