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.
These names of gentleman and lady had a meaning, in the past history of the world, and conferred privileges, desirable or otherwise, on those entitled to bear them. View in context He was lodged in the prison, not as suspected of any offence, but as the most convenient and suitable mode of disposing of him, until the magistrates should have conferred with the Indian sagamores respecting his ransom.