1) Guilty of bigamy 2) Involving bigamy 3) Polygamous 1) Polygamous 
• (a.) Guilty of bigamy; involving bigamy; as, a bigamous marriage.
Big'a·mous adjective Guilty of bigamy; involving bigamy; as, a bigamous marriage. 
[adj] - of illegal marriage to a second person while legally married to a first
bigamous Involved in or constituting an illegal marriage made when an existing marriage is still valid.
adjective of illegal marriage to a second person while legally married to a first
having two wives or husbands at the same time; guilty of bigamy. · involving bigamy.