Synonyms for serious
ˈsɪər i əsse·ri·ous

WiktionaryRate these synonyms:4.0 / 1 vote

1. seriousadjective

   Really intending what is said; being in earnest; not jesting or deceiving; meaningful.

   After all these years, we're finally getting serious attention.

   Antonyms:
   jesting

2. seriousadjective

   Antonyms:
   trifling, unimportant

Complete Dictionary of Synonyms and AntonymsRate these synonyms:0.0 / 0 votes

1. serious

   Synonyms:
   grave, thoughtful, careful, earnest, solemn, important, weighty

   Antonyms:
   volatile, gay, thoughtless, careless, joking, jocose, insignificant, unimportant, trifling, trivial, light

Princeton's WordNetRate these synonyms:5.0 / 1 vote

1. seriousadjective

   concerned with work or important matters rather than play or trivialities

   "a serious student of history"; "a serious attempt to learn to ski"; "gave me a serious look"; "a serious young man"; "are you serious or joking?"; "Don't be so serious!"

   Synonyms:
   unplayful, severe, grave, good, life-threatening, sober, dangerous, grievous

   Antonyms:
   flighty, trivial, scatterbrained, light, lightheaded, light-headed, empty-headed, head-in-the-clouds, noncritical, silly, dizzy, flippant, flyaway, featherbrained, noncrucial, airheaded, frivolous, giddy, nonintellectual, easy, light-minded, unimportant, idle

2. seriousadjective

   of great consequence

   "marriage is a serious matter"

   Synonyms:
   unplayful, severe, grave, good, life-threatening, sober, dangerous, grievous

   Antonyms:
   dizzy, light, light-headed, empty-headed, flyaway, scatterbrained, giddy, lightheaded, head-in-the-clouds, nonintellectual, unimportant, flighty, light-minded, idle, flippant, airheaded, featherbrained, silly, trivial, noncrucial, easy, noncritical, frivolous

3. dangerous, grave, grievous, serious, severe, life-threateningadjective

   causing fear or anxiety by threatening great harm

   "a dangerous operation"; "a grave situation"; "a grave illness"; "grievous bodily harm"; "a serious wound"; "a serious turn of events"; "a severe case of pneumonia"; "a life-threatening disease"

   Synonyms:
   severe, sober, wicked, stark, unsafe, terrible, hard, spartan, stern, heavy, unplayful, weighty, monstrous, grave, good, grievous, atrocious, sedate, flagitious, life-threatening, dangerous, knockout, austere, heartbreaking, heartrending, solemn

   Antonyms:
   light-headed, empty-headed, giddy, lightheaded, featherbrained, easy, dizzy, airheaded, flighty, flyaway, noncritical, head-in-the-clouds, trivial, frivolous, silly, unimportant, noncrucial, light, nonintellectual, flippant, light-minded, scatterbrained, idle

4. good, seriousadjective

   appealing to the mind

   "good music"; "a serious book"

   Synonyms:
   dear, good, beneficial, unplayful, in effect(p), unspoiled, skillful, sound, secure, effective, severe, upright, salutary, in force(p), skilful, practiced, dependable, estimable, life-threatening, grievous, expert, just, grave, dangerous, sober, proficient, full, honest, respectable, undecomposed, unspoilt, ripe, safe, adept, honorable, well(p), right, near

   Antonyms:
   flighty, featherbrained, light-minded, scatterbrained, dizzy, flyaway, flippant, empty-headed, easy, noncritical, idle, airheaded, silly, noncrucial, lightheaded, light, head-in-the-clouds, unimportant, giddy, nonintellectual, light-headed, trivial, frivolous

5. unplayful, serious, soberadjective

   completely lacking in playfulness

   Synonyms:
   severe, sombre, drab, grave, good, sedate, unplayful, life-threatening, sober, somber, dangerous, grievous, solemn

   Antonyms:
   dizzy, noncrucial, silly, giddy, flighty, lightheaded, empty-headed, flyaway, scatterbrained, flippant, light-minded, head-in-the-clouds, featherbrained, airheaded, light, trivial, unimportant, nonintellectual, light-headed, easy, noncritical, idle, frivolous

6. seriousadjective

   requiring effort or concentration; complex and not easy to answer or solve

   "raised serious objections to the proposal"; "the plan has a serious flaw"

   Synonyms:
   unplayful, severe, grave, good, life-threatening, sober, dangerous, grievous

   Antonyms:
   light-headed, unimportant, nonintellectual, lightheaded, trivial, empty-headed, noncrucial, light, head-in-the-clouds, silly, flighty, noncritical, flippant, giddy, scatterbrained, flyaway, dizzy, light-minded, easy, featherbrained, frivolous, idle, airheaded

Dictionary of English SynonymesRate these synonyms:0.0 / 0 votes

1. seriousadjective

   Synonyms:
   grave, solemn, sedate, staid, sober, earnest, demure, not gay, not sportive or jocose

2. seriousadjective

   Synonyms:
   important, weighty, great, momentous

Synonyms, Antonyms & Associated WordsRate these synonyms:0.0 / 0 votes

1. seriousadjective

   Synonyms:
   grave, earnest, thoughtful, solemn, staid, sober, demure, saturnine, momentous, important, weighty, grave, dangerous, alarming, critical

PPDB, the paraphrase databaseRate these paraphrases:0.0 / 0 votes

1. List of paraphrases for "serious":

   grave, severe, seriously, acute, major, gross, dangerous, earnest, heavy, grievous, significant, dire, deep, graves, great, conscientiously, gravely, seriousness, critical, important, profound, considerable, severely, bad, earnestly, big, gravity, substantial, large, egregious, strong, huge, jad, real, difficult

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How to use serious in a sentence?

1. Kory Wright:

   I felt relieved and scared at the same time, i felt relieved that I didn't do it; but at the same time, I felt that that was a serious accusation.

2. Japheth Koome:

   I believe police will get them since we have details of their vehicle, we shall take serious steps against people trying to smash cars of their business rivals.

3. George Bernard Shaw:

   Nothing is worth doing unless the consequences may be serious.

4. Gloria Allred:

   Ms. Haddish appears to have made a laughing matter of the serious issue of drugging and sexual assault, but drugging and sexual assault are not a laughing matter, these allegations against Mr. Cosby are serious and not funny and should not be made the subject matter of attempted humor. Ms. Haddish should consider apologizing to those individuals who have been victims of sexual assault after being drugged.

5. Matthew Belloni:

   They've successfully reintroduced this comic book movie as a very serious artistic endeavor.