insecure

[in-si-kyoor]
adjective
1.
subject to fears, doubts, etc.; not self-confident or assured: an insecure person.
2.
not confident or certain; uneasy; anxious: He was insecure about the examination.
3.
not secure; exposed or liable to risk, loss, or danger: an insecure stock portfolio.
4.
not firmly or reliably placed or fastened: an insecure ladder.

Origin:
1640–50; < Medieval Latin insēcūrus. See in-3, secure

insecurely, adverb
insecureness, noun


3. risky. See uncertain.
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World English Dictionary
insecure (ˌɪnsɪˈkjʊə)
 
adj
1.  anxious or afraid; not confident or certain
2.  not adequately protected: an insecure fortress
3.  unstable or shaky
 
inse'curely
 
adv
 
inse'cureness
 
n
 
inse'curity
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

insecure
1649, "unsafe," from M.L. insecurus, from in- "not" + L. securus (see secure). Psychological sense dates from 1935; insecurity in this sense dates from 1917.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

insecure in·se·cure (ĭn'sĭ-kyur')
adj.

  1. Lacking emotional stability; not well-adjusted.

  2. Lacking self-confidence; plagued by anxiety.


in'se·cu'ri·ty (-kyur'ĭ-tē) n.
The American Heritage® Stedman's Medical Dictionary
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Example sentences
It was insecure and dangerous, effectively training users how to be phished.
If she's intentionally misleading folks, she must feel insecure.
After years of increasingly urgent efforts beating increasingly insecure
  faculty.
But business academics have good reason to feel insecure.
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