–adjective

resolutely fearless; dauntless: an intrepid explorer.

[Origin: 1690–1700; < L intrepidus, equiv. to in- in-3 + trepidus anxious; see trepidation] —Related forms in·tre·pid·i·ty, in·trep·id·ness, noun in·trep·id·ly, adverb —Synonyms brave, courageous, bold. —Antonyms timid. Dictionary.com Unabridged (v 1.1) Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006. American Heritage Dictionary - Cite This Source - Share This in·trep·id (ĭn-trěp'ĭd) Pronunciation Key adj. Resolutely courageous; fearless. See Synonyms at brave. [Latin intrepidus : in-, not; see in-1 + trepidus, alarmed.] in'tre·pid'i·ty (-trə-pĭd'ĭ-tē), in·trep'id·ness n., in·trep'id·ly adv. (Download Now or Buy the Book) The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2006 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. Online Etymology Dictionary - Cite This Source - Share This intrepid 1627 (implied in intrepidness), from L. intrepidus "unshaken, undaunted," from in- "not" + trepidus "alarmed." Online Etymology Dictionary, © 2001 Douglas Harper

According to Wikipedia: http://en.wikipedia.org/wiki/HMS_Intrepid

“The first Intrepid was a third rate ship of the line captured from the French in 1747.”

According to Wikictionary: http://en.wiktionary.org/wiki/Intrepid

“Latin intrepidus from in- (“not”) + trepidus (“anxious, nervous”)

Fearless; bold; brave.”

dates? around3rd to 1st century BCE