confident
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adjective
feeling or showing confidence in oneself; self-assured:
〈人･態度などが〉自信にあふれた, 大胆な; 〈人が〉 «…について» 自信を持っている «about, in, of»
e.g. we require outgoing, confident people able to approach large groups
e.g. a confident smile.
feeling or showing certainty about something:
〈人が〉 «…を/…ということを» 確信している «about, of/that節» (!強い確信を表す)
e.g. this time they're confident of a happy ending
e.g. I am not very confident about tonight's game.
noun archaic
a confidant.
｟古｠ 親友, 腹心の友(confidant)
ORIGIN
late 16th century: from French confident(e), from Italian confidente, from Latin confident- ‘having full trust’, from the verb confidere, from con- (expressing intensive force) + fidere ‘trust’.