Source : Webster's Revised Unabridged Dictionary (1913)

Insecurely \In`se*cure"ly\, adv.
   In an insecure manner.

Source : WordNet®

insecurely
     adv 1: in a tentative and self-conscious manner; "she always acts
            very insecurely in the presence of her father" [ant: {securely}]
     2: in a manner involving risk; "our positions here at the
        university are rather insecurely supported by grant money"
        [ant: {securely}]