self-confident

adjective APPROVING


behaving calmly because you have no doubts about your ability or knowledge:

- At school he was popular and self-confident, and we weren't surprised at his later success.

self-confidently

adverb APPROVING



self-confidence

noun {U} APPROVING

arrogant

adjective

unpleasantly proud and behaving as if you are more important than, or know more than, other people:
- I found him arrogant and rude.

arrogantly

adverb

- The authorities had behaved arrogantly, she said.

arrogance

noun {U}

- He has a self-confidence that is sometimes seen as arrogance.