Definition of insecure. 1  1 : not confident or sure : uncertain feeling somewhat insecure of his reception. 2  2 : not adequately guarded or sustained : unsafe an insecure investment. 3  3 : not firmly fastened or fixed : shaky the hinge is loose and insecure.
For men, semi-formal attire means wearing a full suit, with vest optional. A tie, either bow or straight, should be worn, and the shirt should be a simple button down. Suit fabric choices are primarily wool gabardine or cashmere. However, a wool blend will do.
Semi Formal Dresses. Set the fashion standard at your next big event with semi formal dresses. Choose from sleeveless, one-shoulder dresses and more to get the perfect look for a semi formal occasion. The Bottom A-Line. Fun, yet sophisticated, cocktail dresses with an A-line silhouette are another great option for a special occasion.