• One whose travels are unusual and often exotic, though not so unique as to qualify as exploration.
• One who lives by their wits.
• One who takes part in a risky or speculative course of action for profit or positionoun

In fiction, the adventurer figure or Picaro may be regarded as a descendant of the knight-errant of Medieval romance. Like the knight, the adventurer roams through episodic encounters, usually involving wealth, romance, or fighting. Unlike the knight, the adventurer was a realistic figure, often lower class or otherwise impoverished, who is forced to make his way to fortune, often by deceit. The picaresque novel originated in Spain in the middle of the fifteenth century. Novels such as Lazarillo de Tormes were influential across Europe. Throughout the eighteenth century, a great number of novels featured bold, amoral, adventuring protagonists, who made their way into wealth and happiness, sometimes with and sometimes without the moral conversion that generally accompanies the Spanish model. Under Victorian morality the term, used without qualifiers, came to imply a person of low moral character, often someone trying to marry for money (Lord Barkis Bitteren of the movie Corpse Bride is such a character).