Webster's English Dictionary

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insecure

in.se.cure \.in(t)-si-'kyu.(*)r\ \-'kyu.r-*t-e-\ aj [ML insecurus, fr. L 
   in- + securus secure] 1: UNCERTAIN, UNSURE  2: UNPROTECTED, UNSAFE  3: 
   LOOSE, SHAKY  4: lacking stability : INFIRM  - in.se.cure.ly av