n.self-assurance;confidence
adj.sure of oneself;confident
v.be self-confident;be hopeful
confident，英 ['k?nf?d?nt]，美 ['k?nf?d?nt]
adj. 自信的；有信心的；有把握的
副词: confidently
例句：For my own part, being nice about appearance keeps me confident.
就我而论，注重仪表使我自信。
反义词
diffident，英 ['d?f?d?nt]，美 ['d?f?d?nt]
adj. 无自信的；客客气气的；羞怯的
副词: diffidently
例句：He was too diffident to express his opinion.
他太不自信，不敢发表自己的见解。
