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. Sudirman Said:

   This is the perfect time to consolidate, we will create opportunities for players who are serious, who want to invest and who always comply with government rules.

2. Chuck Schumer:

   Right now they don't get how serious the problem is, did we have a good discussion ? Yes. Will we continue to discuss ? Yes. Do we want to continue to come to an agreement ? Absolutely. But it's got to meet the gravity of the problem.

3. Sebastian Coe:

   They are very serious allegations, the very fact that the allegations are in the public domain means that they are serious. So, we have to be very clear that this is a very, very difficult time for our sport.

4. Macky Sall:

   I expressed to Chancellor Olaf Scholz our serious concern about the impact of the war.

5. Kirk Limacher:

   United Airlines can not return the unvaccinated pilots to the cockpit because — aside from the various practical problems with testing and masking — we would face serious and widespread objections from the vaccinated pilots, in fact the objections among our vaccinated pilots are so strongly held that many of them would simply refuse to fly with the accommodated pilots. The distractions and dissension this would cause in the workforce represent an unacceptable safety risk.