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.
Columbia.--Hands off, gentlemen! America means fair play for all men.. This Harper's Weekly cartoon by Thomas Nast defends Chinese immigrants against the fierce prejudice and discrimination which they faced in late-nineteenth-century America.