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Definitions

seriously

[seer-ee-uhs-lee] / ˈsɪər i əs li /
ADVERB
not humorously
Synonyms
STRONGEST
actively earnestly passionately sincerely vigorously
STRONG
gravely
WEAK
all joking aside cool it cut the comedy determinedly down fervently for real in all conscience in all seriousness in earnest intently purposefully resolutely sedately simmer down soberly solemnly sternly straighten out thoughtfully with a straight face with forethought with sobriety zealously
Antonyms
WEAK
casually funnily lightly minor trivially
ADVERB
dangerously, critically
Synonyms
STRONGEST
acutely badly grievously intensely severely sorely very
STRONG
gravely
WEAK
decidedly deplorably distressingly harmfully menacingly perilously precariously quite regrettably threateningly
Antonyms
STRONGEST
little
WEAK
casually funnily lightly minor trivially

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Seriously, see for yourself — it’s currently streaming on Netflix.

From Salon • Mar. 28, 2026

"She masters that American absolutely beautiful accent that she does," Mielewska, who worked with Byrne on the 2022 comedy "Seriously Red", told AFP at her home in Sydney's leafy north.

From Barron's • Mar. 5, 2026

Suffolk has recently been identified by the Environment Agency as a Seriously Water Stressed Area, which means its long-term water security is under threat.

From BBC • Dec. 22, 2025

Seriously, this is one hell of an ice cream sandwich that you need to stock up on.

From Salon • Sep. 29, 2025

Seriously, I could be grown with kids of my own and Grandma would be one cough away from death, telling Jay, “Remember that time you couldn’t find my grandbaby and called me for help?”

From "On the Come Up" by Angie Thomas