1. most shy or modest, especially in a flirtatious way
Usage: superlative form of ‘coy’

Examples

• She gave him the coyest smile before looking away.
• Of all the students, Maria was the coyest when meeting new people.
• His coyest response was simply a blush and a shrug.
• The actress played the coyest character in the romantic comedy.
• Even her coyest attempts at flirting were quite obvious.
• The kitten’s coyest behavior involved hiding behind the curtains.