Showing results for more serious. Search instead for more+perilous.

more serious

ADJECTIVE

somber, humorless

Synonyms

STRONGEST

deliberate genuine honest severe sincere thoughtful

STRONG

sober

WEAK

austere bound bound and determined businesslike cold sober contemplative deadpan determined downbeat earnest funereal go for broke grave grim intent long-faced meditative no-nonsense pensive pokerfaced reflective resolute resolved sedate set solemn staid steady stern unhumorous unsmiling weighty

Antonyms

STRONGEST

deceptive dishonest false insincere misleading untrustworthy

WEAK

flippant funny happy light minor trivial unimportant unserious

ADJECTIVE

crucial, weighty

Synonyms

STRONGEST

dangerous deep difficult far-reaching grievous important major meaningful severe significant tough urgent

WEAK

arduous fateful fell formidable grave grim hard heavy laborious meaning business menacing momentous no joke no laughing matter of consequence operose out for blood playing hard ball pressing smoking sobering strenuous strictly business threatening ugly unamusing unhumorous worrying

Antonyms

STRONGEST

calm easy facile friendly insignificant little meaningless minor small trivial unimportant worthless

WEAK

flippant funny happy light unserious

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.

Snead said he pestered Berry “probably jokingly at first,” before talks became more serious before and after the NFL draft in late April.

From Los Angeles Times • Jun. 2, 2026

This designation has more serious consequences, as it entails equating the PCC and CV with groups such as Al-Qaeda or the Islamic State.

From Barron's • May 29, 2026

After ruling out more serious autoimmune conditions, my new dermatologist did a scalp biopsy and finally diagnosed me with fibrosing alopecia in a pattern distribution, or FAPD, in which inflammation damages hair follicles via scarring.

From Slate • May 23, 2026

One culprit for the shift: a new media diet for fans of more serious nonfiction.

From The Wall Street Journal • May 18, 2026

But collections also provided more serious scholars with specimens that helped them formulate theories on the natural order of life.

From "The Girl Who Drew Butterflies: How Maria Merian's Art Changed Science" by Joyce Sidman