1. To a degree impossible of achievement
   "long thought to be an impossibly difficult operation"; "impossibly far from sources of supply"

See also: impossible

Antonym: possibly

• congenital abnormality
• congenital afibrinogenemia
• congenital anomaly
• congenital defect
• congenital disease
• congenital disorder
• congenital heart defect
• congenital megacolon
• congenital pancytopenia
• congenitally
• conger
• conger eel
• congeries
• congest
• congested
• congestion
• congestion charge
• congestive
• congestive heart failure
• congius
• conglobate
• conglobation
• conglobe
• conglomerate
• conglomeration