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, as the name implies, is slightly more relaxed â think a dark suit and a tie, or anything youâd refer to as âcocktailâ dress. The tuxedo is the heart of formal dress. For the DRESSIEST of occasions, bow tie is a must â a tailed jacket, white shirt and white bow tie.