cocky (adj.)

• arrogant
• audacious
• bluff
• bold
• brash
• brassy
• brazen
• bumptious
• challenging
• cheeky
• chesty
• cocksure
• conceited
• contemptuous
• crusty
• daring
• defiant
• derisive
• disdainful
• disrespectful
• egotistical
• flip
• flippant
• fresh
• gratuitous
• haughty
• immodest
• impertinent
• impudent
• insolent
• nervy
• obtrusive
• overconfident
• perky
• pert
• prideful
• proud
• rude
• sassy
• saucy
• self-conceited
• self-important
• self-opinionated
• smart
• stuck-up
• uncalled-for
• vain