【Matrimonial】 , 【marital】 , 【conjugal】 , 【connubial】 , 【nuptial】 , 【hymeneal】 mean of, relating to, or characteristic of marriage.
【Matrimonial】 is the most general term applicable to whatever has to do both with matrimony and with marriage in most of its senses (see MARRIAGE ).
【Marital】 which sometimes implies specific reference to the husband and his part in marriage is often used interchangeably with 【matrimonial】 .
【Conjugal】 and 【connubial】 are frequently used interchangeably. More discriminatively, 【conjugal】 refers to persons who are married and 【connubial】 to the marriage state.
【Nuptial】 has primary reference to the marriage rites or ceremony.
【Hymeneal】 is a poetic or literary word, suggestive of the splendors of marriage rites and festivities.