seriously

adverb

se·​ri·​ous·​ly ˈsir-ē-əs-lē 

1

: in a sincere manner : earnestly

speaking seriously

2

: to a serious extent : severely, extremely

seriously injured

Synonyms of seriously

• extremely
• terribly
• very
• incredibly
• too
• really
• highly
• damn
• so
• badly
• damned
• severely
• desperately
• far
• greatly
• especially
• that
• much
• intensely
• heavily
• most

Examples of seriously in a Sentence

No one was seriously injured in the accident.

I thought seriously about death while I was in the hospital.

You should seriously consider buying a new car.

You don't mean that seriously, do you?

It was so hot that we nearly melted. But seriously, it was hotter than I've ever experienced.

I think you are seriously mistaken.

Recent Examples on the Web

Gabriel also acknowledged lawmakers’ responsibility to oversee state spending seriously as well, and would be scrutinizing government programs for wastefulness. —Andrew Graham, Sacbee.com, 13 Jan. 2026

Paul Rudd just had a seriously intimate interview. —Raechal Shewfelt, Entertainment Weekly, 13 Jan. 2026

The Fresno Fire Department also shared photos of cars that had been seriously damaged in the crash on Facebook. —Gabrielle Rockson, PEOPLE, 13 Jan. 2026

The Dunsmore attorneys argued in the petition for an injunction that keeping seriously mentally ill people in isolation for 23 hours a day or more is dangerous, leading them to become safety risks to themselves or others. —Jeff McDonald, San Diego Union-Tribune, 12 Jan. 2026

Word History

First Known Use

1643, in the meaning defined at sense 2

Phrases Containing seriously

• take (someone or something) seriously
• take themselves too seriously

Rhymes for seriously

• deliriously
• imperiously
• mysteriously