definition tacky is an adjective that refers to something that is considered unstylish. Its significance lies in the fact that it represents a style or quality that is considered undesirable or lacking in taste. When something is described as tacky, it often means that it is not up to par with current trends or standards. It can be used to express disapproval or disappointment in something that is seen as lacking in originality or style. In popular culture, there are various examples of things that can be considered naff, such as fashion trends from the past that are now cringe-worthy, or clichéd expressions and clichéd ideas in art and media. Understanding the importance of what is considered cheesy can be helpful in avoiding or updating our own personal style and taste. It reminds us to stay current and strive for originality and uniqueness instead of simply following the crowd.

Naff definition in American English