insecure

Concise Oxford English Dictionary © 2008 Oxford University Press:
insecure/ɪnsɪˈkjʊə(r)/

▶adjective

• 1 not confident or assured.

• 2 (of a thing) not firm or firmly fixed.

  ■ not permanent: insecure employment.

• 3 insufficiently protected.

– derivatives
insecurely adverb,
insecurity noun (pl. insecurities).