"unsecured" in the adjective sense
1. unbarred, unbolted, unlatched, unlocked, unsecured
not firmly fastened or secured
"an unbarred door"
"went through the unlatched gate into the street"
"an unlocked room"
2. unguaranteed, unsecured
without financial security
"an unsecured note"
Source: WordNet® (An amazing lexical database of English)
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