mortally

adverb

mor·​tal·​ly ˈmȯr-tᵊl-ē 

1

: in a deadly or fatal manner : to death

mortally wounded

2

: to an extreme degree : intensely

mortally afraid

Synonyms of mortally

• terribly
• extremely
• very
• incredibly
• severely
• highly
• badly
• too
• damned
• so
• desperately
• damn
• really
• seriously
• greatly
• intensely
• far
• wildly
• heavily

Examples of mortally in a Sentence

I'm mortally certain that I've seen that guy before.

Recent Examples on the Web

Upon returning to the farm, the Creature discovers the old man mortally wounded by wolves. —Randall Colburn, Entertainment Weekly, 12 Mar. 2026

Victim Placido Dandrea’s wife was on the phone with their daughter early Tuesday evening when the chaos unfolded — with the panicked daughter dashing out from their home only to find her dad mortally injured — a neighbor said. —Emma Seiwell, New York Daily News, 11 Mar. 2026

Pulaski was mortally wounded during the Siege of Savannah in 1779. —Adam Harrington, CBS News, 2 Mar. 2026

Police said four shots rang out, leaving Salazar mortally injured, and his brother and another man suffering from gunshot wounds. —Robert Salonga, Mercury News, 26 Jan. 2026

Word History

First Known Use

14th century, in the meaning defined at sense 1