Serious

Adjective

 * 1) Without humor or expression of happiness; grave in manner or disposition; earnest; thoughtful; solemn.
 * It was a surprise to see the captain, who had always seemed so serious, laugh so heartily.
 * 1) Important; weighty; not trifling; leaving no room for play; needing great attention; critical.
 * This is a serious problem. We'll need our best experts.
 * 1) Really intending what is said; being in earnest; not jesting or deceiving; meaningful.
 * After all these years, we're finally getting serious attention.

Synonyms

 * See also Thesaurus:serious

Antonyms

 * trifling, unimportant
 * jesting

Derived terms

 * dead serious
 * seriously
 * seriousness
 * serious-minded
 * serious-mindedly
 * serious-mindedness

Adverbs for Serious
gravely; critically; extremely; unquestionably; apparently; evidently; manifestly; curiously; secretly; palpably; ominously; portentously; mysteriously; admittedly; oddly; resolutely;  decidedly;  emphatically; grimly; severely.

Thesaurus
abandoned, acute, afire, alarming, ardent, arduous, austere, awe-inspiring, bad, bound, bound and determined, burning, businesslike, cogitative, cognitive, committed, comprehensive, concentrating, concentrative, conceptive, conceptual, conceptualized, consequential, considerable, contemplating, contemplative, critical, crucial, dangerous, dangersome, decided, decisive, decorous, dedicated, deep, definite, deliberating, deliberative, demure, determined, devoted, devout, difficult, dignified, dour, earnest, elevated, excogitating, exhaustive, explosive, faithful, fatal, fateful, fell, fervent, fervid, fiery, flaming, formal, formidable, fraught with danger, frowning, full, genuine, grand, grave, great, grievous, grim, grim-faced, grim-visaged, hearty, heated, heavy, honest, hot, hot-blooded, humorless, ideative, impassioned, important, imposing, in earnest, inspiring, intense, intent, intent on, introspective, irresistible, jeopardous, laborious, life-and-death, life-or-death, lofty, long-faced, loyal, main, majestic, major, maximum, meditating, meditative, menacing, mental, mighty, moderate, momentous, moving, museful, musing, nasty, no joke, no laughing matter, no-nonsense, noble, noetic, obstinate, on fire, operose, parlous, passionate, pensive, perfervid, periculous, perilous, persevering, persistent, plenary, poker-faced, pondering, portentous, powerful, precarious, prehensive, pressing, purposeful, red-hot, reflecting, reflective, relentless, resolute, resolved, ruminant, ruminating, ruminative, sedate, serious-minded, severe, significant, sincere, single-minded, sober, sober-minded, sobersided, solemn, somber, speculative, spirited, staid, stately, steady, stern, stone-faced, straight-faced, straightforward, strenuous, strong, sublime, temperate, tenacious, thinking, thought, thoughtful, threatening, total, tough, ugly, unamusing, unfunny, unsmiling, urgent, vehement, vital, warm, weighty, white-hot, wholehearted, wistful, zealous

Etymology
From seryows: <  serieux: <  seriosus:, an extension of  serius:, perhaps for *undefined: and in effect another form of severus:.

Translations

 * Armenian:
 * Belarusian:
 * Catalan: seriós
 * Chinese:
 * Mandarin: 嚴肅, 严肃
 * Croatian: ,
 * Czech:
 * Dutch: ,
 * Esperanto:
 * Finnish: vakava, vakavamielinen, totinen
 * French: sérieux, sérieuse
 * German:


 * Greek:
 * Italian:
 * Japanese:, ,
 * Latvian: nopietns
 * Polish:
 * Portuguese:
 * Russian:
 * Spanish:
 * Swedish: allvarsam
 * Turkish:
 * Ukrainian: серйозний
 * Welsh: difrifol


 * Arabic: جدي, جاد
 * Armenian:
 * Belarusian:
 * Catalan: seriós
 * Chinese:
 * Mandarin:, , ,  ,
 * Croatian:, ,
 * Czech:
 * Danish:
 * Dutch:
 * Esperanto:, grava
 * Finnish:
 * French:
 * German: ,


 * Greek:
 * Hungarian: ,
 * Italian: ,
 * Japanese: ,
 * Korean: 심각한 (simgakhan)
 * Latin: ,
 * Latvian: svarīgs
 * Norwegian: alvorlig, seriøs
 * Polish:
 * Portuguese:
 * Russian:
 * Spanish:
 * Swedish: ,
 * Turkish:
 * Ukrainian: серйозний
 * Welsh: difrifol


 * Arabic: جدي, جاد
 * Armenian:
 * Belarusian:
 * Catalan: seriós
 * Chinese:
 * Mandarin:, , ,
 * Croatian:
 * Czech:
 * Dutch: ,
 * Finnish:
 * French:
 * German:


 * Greek:
 * Hungarian: ,
 * Italian:
 * Japanese:
 * Korean: 심각한 (simgakhan)
 * Latvian: nopietns
 * Portuguese:
 * Russian:
 * Spanish:
 * Swedish:
 * Ukrainian: серйозний
 * Welsh: o ddifri'