antecedent vs father

antecedent and father both are nouns.

Word	Noun	Adjective	Verb	Adverb
antecedent	Yes	Yes	No	No
father	Yes	No	Yes	No

As nouns, father is a hyponym of antecedent; that is, father is a word with a more specific, narrower meaning than antecedent:

antecedent: someone from whom you are descended (but usually more remote than a grandparent)
father: the founder of a family

Other hyponyms of antecedent include ancestress, forbear, forebear, forefather, sire, foremother, primogenitor, progenitor.

antecedent (noun)	father (noun)
the referent of an anaphor; a phrase or clause that is referred to by an anaphoric pronoun	a male parent (also used as a term of address to your father)
a preceding occurrence or cause or event	the founder of a family
someone from whom you are descended (but usually more remote than a grandparent)	a person who holds an important or distinguished position in some organization
anything that precedes something similar in time	a person who founds or establishes some institution
	the head of an organized crime family

antecedent (adjective)	father (adjective)
preceding in time or order

antecedent (verb)	father (verb)
	make (offspring) by reproduction