adjective
1.
Synonyms: shy 1, bashful, demure, diffident, rabbity, retiring, self-effacing, timid, unassertive, unassured
Related Word: decent, decorous, nice, proper, seemly
Contrasted words: brash, brazen, impudent
2.
marked by a light playful artlessness
glanced up with a coy twinkle in her eye
Synonyms: arch, coquettish, roguish
Related Word: capricious, kittenish, lively, mischievous, playful, skittish
Contrasted words: serious, sober, thoughtful