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.
husband (plural husbands) ( 1 obsolete) The master of a house; the head of a family; a householder. ( 2 obsolete) A tiller of the ground; a husbandman. ( 3 archaic) A prudent or frugal manager.  A man in a marriage or marital relationship, especially in relation to his 1  spouse. The male of a pair of animals.