Meaning : Affectedly modest or shy especially in a playful or provocative way.
Synonyms : demure, overmodest
Meaning : Showing marked and often playful or irritating evasiveness or reluctance to make a definite or committing statement.
Example :
A politician coy about his intentions.
Meaning : Modestly or warily rejecting approaches or overtures.
Example :
Like a wild young colt, very inquisitive but very coy and not to be easily cajoled.