noun a person related by blood or marriage
Synonymsrelation
noun an animal or plant that bears a relationship to another (as related by common descent or by membership in the same genus)
adjective estimated by comparison; not absolute or complete
Synonymscomparative
Similarrelational
Oppositesabsolute
adjective properly related in size or degree or other measurable characteristics; usually followed by `to'
Synonymsproportional
Similarproportionate
Source: WordNet 3.1, Princeton University