[adj] involving or causing danger or risk; liable to hurt or harm; "a dangerous criminal"; "a dangerous bridge"; "unemployment reached dangerous proportions"
[adj] lacking in security or safety; "his fortune was increasingly insecure"; "an insecure future"
[adj] not safe from attack
Synonyms
breakneck, chanceful, chancy, dangerous, desperate, dicey, dodgy, embattled, harmful, hazardous, insidious, kamikaxe(a), on the hook(p), parlous, perilous, precarious, risky, self-destructive, shaky, suicidal, touch-and-go, treacherous, uncertain, unguara