/ ˌɪnsɪˈkjʊə(r); NAmE -ˈkjʊr/ adjective
1.
not confident about yourself or your relationships with other people :
He's very insecure about his appearance.
She felt nervous and insecure.
2.
not safe or protected :
Jobs nowadays are much more insecure than they were ten years ago.
As an artist he was always financially insecure.
Insecure doors and windows (= for example, without good locks) make life easy for burglars.
OPP secure
► in·se·cure·ly adverb
► in·secur·ity / ˌɪnsɪˈkjʊərəti; NAmE -ˈkjʊr-/ noun [ U , C ] ( pl. -ies ):
feelings of insecurity
job insecurity
We all have our fears and insecurities.
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WORD ORIGIN
mid 17th cent.: from medieval Latin insecurus unsafe, from in- not + Latin securus free from care, or from in- not + secure .