[adj] lacking self-confidence or assurance; "an insecure person lacking mental stability"
[adj] lacking in security or safety; "his fortune was increasingly insecure"; "an insecure future"
[adj] not firm or firmly fixed; likely to fail or give way; "the hinge is insecure"
[adj] not financially safe or secure; "a bad investment"; "high risk investments"; "anything that promises to pay too much can't help being risky"; "speculative business enterprises"
[adj] not safe from attack
bad, embattled, high-risk, loose, overanxious, precarious, risky, shaky, speculative, unassured, uncertain, unguaranteed, unsafe, unsecured, unsound, unsure