(1):

(superl.) Old and worn out; exhausted; spiritless; also, poor and miserable looking; shabbily clothed; shabby looking; as, he looked seedy coat.

(2):

(superl.) Having a peculiar flavor supposed to be derived from the weeds growing among the vines; - said of certain kinds of French brandy.

(3):

(superl.) Abounding with seeds; bearing seeds; having run to seeds.