1
- (of a person, action, or idea) showing a willingness to take risks; confident and courageous（人, 行动, 主意）大胆的, 有冒险精神的, 自信而勇敢的：
a bold attempt to solve the crisis
解决危机的大胆尝试
no journalist was bold enough to take on the Prime Minister.
没有一个记者大胆到敢与首相较量。
1.1
- dated (of a person or manner) so confident as to suggest a lack of shame or modesty〈旧〉（人, 行为举止） 放肆的, 无礼的, 唐突的, 傲慢的：
she tossed him a bold look.
她傲慢地看了看他。
1.2
- Irish (especially of a child) naughty; badly behaved〈爱尔兰〉（尤指儿童）淘气的, 顽皮的; 表现不好的：
I slapped him when he was bold.
他淘气的时候我打了他。
2
- (of a colour, pattern, or design) having a strong or vivid appearance（颜色, 式样, 图案）醒目的; 显著的, 轮廓清晰的：
a coat with bold polka dots.
有醒目圆点花纹的外套。
2.1
- (of type) having thick strokes（字体）黑体的, 粗体的。
3
- (of a cliff or coastline) steep or projecting（悬崖, 海岸）陡峭的; 突出的。
mass noun
- a typeface with thick strokes黑体字, 粗体字：
Shadow cabinet members listed in bold.
用黑体字列出的影子内阁成员名单。
短语
be（或 make）so bold (as to do something)
- formal dare to do something (often used when politely asking a question or making a suggestion)〈正式〉不顾唐突, 不揣冒昧：
what would he be calling for, if I might make so bold as to ask?
我冒昧问一句, 他会有什么样的要求呢？
(as)bold as brass
- confident to the point of impudence厚颜无耻; 胆大妄为：
she marched into the library as bold as brass.
她胆大妄为地大步走进图书馆。
bold stroke
- a daring action or initiative大胆的行动（或倡议）。
派生词
boldly
adverbboldness
noun词源
Old English bald, of Germanic origin; related to Dutch boud and to German bald 'soon'.