1. most inclined to follow fads; most trendy or fashion-conscious
Usage: superlative form of faddy

Examples

• She’s the faddiest person in our group, always trying the latest diet trends.
• The faddiest students were the first to adopt the new social media platform.
• He used to be the faddiest dresser in school, but now he prefers classic styles.
• The magazine targets the faddiest consumers who love trying new products.
• Among all the teenagers, Maria was the faddiest when it came to hairstyles.