adverb (r)

• in a tentative and self-conscious manner(adv.all)

  Example:
  She always acts very insecurely in the presence of her father.
  

  source: wordnet30
• in a manner involving risk(adv.all)

  Example:
  Our positions here at the university are rather insecurely supported by grant money.
  

  Antonym:
  securely
  

  source: wordnet30
• In an insecure manner.(adverb)

  source: webster1913