behaving in a proud, superior way; (of behaviour etc) showing too much pride in oneself and too little thought for others

having exaggerated self-opinion

(especially of a young person) rude and not showing respect

impulsive, brazen

too confident or sure of one's ability etc

self-assured

feeling or showing confidence

certain, assured

a flat limb of certain sea animals (not fish) used in swimming; a similar device, usually of rubber, worn on the feet to aid swimming

bold, shameless

not showing proper respect; rude

bold, disrespectful

very rude, disrespectful

bold, shameless

liking, showing a fondness for, having, (too much) interest on other's affairs

curious

very (often too) noticeable or obvious

pushy, obvious

not showing proper respect

lively, bold

full of, showing (too much) self-importance

arrogant, egotistic

(of a person) having developed intelligence earlier that is normal

exceptionally smart, ahead of age in understanding

not abashed

shameless

snobbish

arrogant