Affinitive is an adjective that is often used to describe a relationship or connection between two things. Some synonyms for affinitive include related, connected, associated, linked, correlated, and intertwined. These words are commonly used to describe how two ideas, concepts, or objects are tied together in some way. Other synonyms for affinitive could also include words like interdependent, allied, kindred, or cohesive. These words all suggest a strong connection or bond between two things, and can be useful for writers or speakers who are trying to convey a sense of unity, cohesiveness, or continuity.