cocky
cocky /k'ɒki/ (cockier cockiest)
[ADJ]
Someone who is cocky is so confident and sure of their abilities that they annoy other people. (INFORMAL)
He was a little bit cocky when he was about 11 because he was winning everything.
= cocksure
[ADJ]
Someone who is cocky is so confident and sure of their abilities that they annoy other people. (INFORMAL)
He was a little bit cocky when he was about 11 because he was winning everything.
= cocksure