Thesaurus

serious

adjective

Synonyms and Antonyms of serious

  1. 1 not joking or playful in mood or manner I'm serious when I say that no one should be walking in that neighborhood at night Synonyms of serious earnest, grave, humorless, no-nonsense, po-faced [British], sedate, severe, sober, sobersided, solemn, staid, uncomic, unsmiling, weighty Words Related to serious harsh, stern, strict; businesslike, professional; dignified, distinguished, elevated, serious-minded; gloomy, grim Near Antonyms of serious antic, comic, comical, droll, farcical, funny, hilarious, hysterical (also hysteric), laughable, light, light-headed, ludicrous, ridiculous, riotous, risible, screaming, sidesplitting, uproarious; featherbrained, flighty, frivolous, goofy, harebrained, lighthearted, puerile, scatterbrained; absurd, asinine, balmy, brainless, cockeyed, crazy, cuckoo, daffy, daft, dotty, fatuous, foolish, half-witted, insane, jerky, kooky (also kookie), loony (also looney), lunatic, mad, nonsensical, nutty, preposterous, sappy, screwball, senseless, silly, unwise, wacky (also whacky), weak-minded, witless, zany Antonyms of serious facetious, flip, flippant, humorous, jesting, jocular, joking, kittenish, ludic, playful

  2. 2 having a matter of importance as its topic a very serious film that dealt with the aftermath of the Gulf War Synonyms of serious grave, heavy, weighty Words Related to serious big, consequential, eventful, important, major, material, meaningful, momentous, portentous, significant, solid, substantial Near Antonyms of serious frivolous, insignificant, lite, little, Mickey Mouse, minor, silly, slight, small, trivial, unimportant Antonyms of serious light, unserious

  3. 3 involving potential loss or injury a serious accident Synonyms of serious grave, grievous, hazardous, jeopardizing, menacing, parlous, perilous, risky, dangerous, threatening, unhealthy, unsafe, venturesomeWords Related to serious dicey, insecure, precarious, treacherous, uncertain; ultrahazardous; chance, haphazard, random; distressing, sickening, unpleasant; ugly, wicked; adverse, bad, baleful, baneful, deleterious, detrimental, evil, harmful, hurtful, ill, inimical, injurious, malignant, nasty, noxious, pernicious, pestilent; deadly, deathly, destructive, dire, fatal, fateful, fell, killer, lethal, mortal, murderousNear Antonyms of serious advantageous, beneficial, good; ultrasafeAntonyms of serious harmless, innocent, innocuous, nonhazardous, nonthreatening, safe, unthreatening

Synonym Discussion of serious

serious, grave, solemn, sedate, staid, sober, earnest mean not light or frivolous. serious implies a concern for what really matters.
    • a serious play about social injustice
grave implies both seriousness and dignity in expression or attitude.
    • read the proclamation in a grave voice
solemn suggests an impressive gravity utterly free from levity.
    • a sad and solemn occasion
sedate implies a composed and decorous seriousness.
    • remained sedate amid the commotion
staid suggests a settled, accustomed sedateness and prim self-restraint.
    • a quiet and staid community
sober stresses seriousness of purpose and absence of levity or frivolity.
    • a sober look at the state of our schools
earnest suggests sincerity or often zealousness of purpose.
    • an earnest reformer


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the significant part of a grievance

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