1. superlative form of fringe; most unconventional, extreme, or on the outer edge of mainstream society or thought
Usage: informal; comparative form is 'fringier'
2. superlative form of fringe; having the most fringe or border-like edge
Usage: literal/descriptive use

Examples

• That political group holds the fringiest views in the entire movement.
• The fringiest ideas often come from independent researchers working outside academia.
• She wore the fringiest jacket at the concert, with long tassels hanging from every edge.
• The fringiest members of the club were eventually asked to leave.
• His fringiest theories about climate change were rejected by mainstream scientists.
• The fringiest neighborhoods in the city are experiencing rapid development.