'insecure feeling' is correct and usable in written English.
This expression can be used to describe an emotion of unease or feeling of being threatened in some way. Example sentence: She had an insecure feeling as she entered the dark room.
"It left us with an insecure feeling because we didn't know where we were headed," Davis said.
"There's that insecure feeling right now that we could all find ourselves in their position," he said.
Then there is the amount of money it is all too easy to spend at AbeBooks, or increasing the number of books that can be borrowed from the London Library from the statutory 10 to the maximum 40, to assuage that insecure feeling that a long out-of-print biography, or a foxed and forgotten memoir, will provide just the illuminating quotation that will vivify a whole chapter for you.
This is the insecure feeling that you are out of your depth, too "far over your skis," that you will be seen as a fraud.
Having never taken a music class myself, I've long had a bit of an insecure feeling about my own credentials as a promoter of the art form and some of its very greatest musicians.
In a physiological side, the elderly are more likely to develop loneliness and insecure feelings if they are alone in their own homes or might feel a burden, outsider, and losing their autonomy when admitted to long term care facility.
Those of us who know that these thoughts -- and nothing on the outside -- create our insecure feelings usually won't act on them.
Provided, that is, you get a solid grip on the principle that acting on unethical, or insecure, feelings won't ever make them go away.
Beyonce and trap music has helped me deal with the insecure feelings, and the blood of Jesus has kept me from popping off on people because of my short fuse.
It became one of those things where, by talking about Kramers, people were really talking about themselves and their insecure feelings about hipsters, fine art, and weird inverse elitism.
The high initial PS scores that we observed in the mothers may be partially explained by phase-specific insecure feelings about parenting, perceived lack of caregiving skills and confidence while confronting the infant's needs and her difficult or ambiguous signals [ 53].
