1. most selective or demanding in choosing; hardest to please
Usage: superlative form of picky

Examples

• She’s the pickiest eater in our family and won’t try new foods.
• The pickiest customers often provide the most valuable feedback.
• He’s the pickiest about his coffee, only drinking single-origin beans.
• Even the pickiest art critics praised the exhibition.
• The pickiest hiring manager finally found the perfect candidate.
• My pickiest friend actually loved the restaurant I recommended.