The definition of an adjective is a part of speech that is used to describe a noun. Red, tall, better and fast are all examples of adjectives.
In modern parlance, a gentleman (from gentle + man, translating the Old French gentilz hom) is any man of good, courteous conduct. A gentleman may also simply be a polite term for any man, as in indications of gender-separated facilities, or as a sign of the speaker's own courtesy when addressing others. The modern female equivalent is lady.
1. A man who takes great care with his clothing and general appearance, especially one who is nonchalant in demeanor and (historically) tries to develop aristocratic hobbies, language, and honorable ideals. (See also fop). 2. A flamboyant or effeminate male, regardless of sexual orientation.