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more daring or courageous: He is far bolder than one would imagine.
Not to be confused with:
boulder – a large rock: The boulder broke loose and tumbled down the mountain.
Abused, Confused, & Misused Words by Mary Embree Copyright © 2007, 2013 by Mary Embree


adj. bold·er, bold·est
a. Fearless and daring; courageous: a bold leader.
b. Requiring or exhibiting courage or daring: a bold voyage to unknown lands. See Synonyms at brave.
2. Unduly forward and brazen; impudent: a bold, sassy child.
3. Strikingly different or unconventional; arresting or provocative: "[He] laid out a bold, new vision for America's leading universities" (Jerome Karabel).
a. Clear and distinct to the eye; conspicuous: bold colors; a bold pattern.
b. Strong or pronounced; prominent: the bold flavor of ginger.
5. Steep or abrupt in grade or terrain: "The two walk along the high, bold, rocky shore" (Harriet Beecher Stowe).
6. Printing Boldface.

[Middle English, from Old English bald; see bhel- in Indo-European roots.]

bold′ly adv.
bold′ness n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in classic literature ?
'I have had diappointments to contend against,' said Squeers, looking very grim; 'Bolder's father was two pound ten short.
But at last he determined to put a bolder face upon his misfortune, and summoned all the foxes to a general meeting to consider a proposal which he had to place before them.
And of course they got bolder and bolder, which is their way.
If I could dwell Where Israfel Hath dwelt, and he where I, He might not sing so wildly well A mortal melody, While a bolder note than this might swell From my lyre within the sky.
Jaggers relax into something like a smile, and Wemmick become bolder.
They first caught crabs and quohogs in the sand; grown bolder, they waded out with nets for mackerel; more experienced, they pushed off in boats and captured cod; and at last, launching a navy of great ships on the sea, explored this watery world; put an incessant belt of circumnavigations round it; peeped in at Behring's Straits; and in all seasons and all oceans declared everlasting war with the mightiest animated mass that has survived the flood; most monstrous and most mountainous!
"They must be feeling dull, too," said one of the bolder officers, laughing.
Fogg, bolder than his servant, did not hesitate to approach the pilot, and tranquilly ask him if he knew when a steamer would leave Hong Kong for Yokohama.
He determined, therefore, to strike out into some of the bolder parts of his scheme.
But about midnight, when the robbers saw from afar that the lights were out and that all seemed quiet, they began to think that they had been in too great a hurry to run away; and one of them, who was bolder than the rest, went to see what was going on.
Some of the bolder of the curious throng ventured on several evenings to stand upon the doorsteps to intercept them, or failing in this, get a nearer look at them.
A very decent shot, and there is not a bolder rider in England."