Certified Special Event Professional (CSEP) Practice Exam 2025 - Free CSEP Practice Questions and Study Guide

The concept of traditional western styles of dress generally includes several recognized categories that denote varying levels of formality. The options provided reflect these categories, with formal attire being the most structured, typically involving formal wear such as tuxedos or evening gowns. Semi-formal attire is a step down from that, often including cocktails or business suits suitable for evening events. Informal can refer to smart-casual attire that is still polished but not excessively formal.

The term "anitformal," on the other hand, does not correspond to any recognized category of dress in western culture. It appears to be a misrepresentation or a fabricated term, rather than a distinct style that fits within the framework of traditional western dress codes. As such, it does not belong to the established categories and is the correct answer as it is not a traditional western style. This distinction clarifies the accepted terms in dress code discussions and highlights the importance of understanding conventional classifications in event planning.