patrilineal sib vs relative

patrilineal sib and relative both are nouns.

Word	Noun	Adjective	Verb	Adverb
patrilineal sib	Yes	No	No	No
relative	Yes	Yes	No	No

As nouns, relative is a hypernym of patrilineal sib; that is, relative is a word with a broader meaning than patrilineal sib:

Other hypernyms of patrilineal sib include relation.

patrilineal sib (noun)	relative (noun)
one related on the father's side	an animal or plant that bears a relationship to another (as related by common descent or by membership in the same genus)
	a person related by blood or marriage

patrilineal sib (adjective)	relative (adjective)
	estimated by comparison; not absolute or complete
	properly related in size or degree or other measurable characteristics; usually followed by `to'