wedding vs bridal

wedding and bridal both are nouns.

Word	Noun	Adjective	Verb	Adverb
wedding	Yes	No	No	No
bridal	Yes	Yes	No	No

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

Other hyponyms of wedding include espousal, civil marriage, love match, remarriage.

wedding (noun)	bridal (noun)
the act of marrying; the nuptial ceremony	archaic terms for a wedding or wedding feast
the social event at which the ceremony of marriage is performed
a party of people at a wedding

wedding (adjective)	bridal (adjective)
	of or pertaining to a bride
	of or relating to a wedding