Insecure

Part of speech: adjective (a.)

1. Not secure; not confident of safety or permanence; distrustful; suspicious; apprehensive of danger or loss. With sorrow and insecure apprehensions. Jer. Taylor.

2. Not effectually guarded, protected, or sustained; unsafe; unstable; exposed to danger or loss. Bp. Hurg. The trade with Egypt was exceedingly insecure and precarious. Mickle.