A gentleman that is very singular in his behavior.
Syn. -- Bearing; demeanor; manner. -- Behavior, Conduct. Behavior is the mode in which we have or bear ourselves in the presence of others or toward them; conduct is the mode of our carrying ourselves forward in the concerns of life. Behavior respects our manner of acting in particular cases; conduct refers to the general tenor of our actions. We may say of soldiers, that their conduct had been praiseworthy during the whole campaign, and their behavior admirable in every instance when they met the enemy.