Antonyms 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

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

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

Princeton's WordNetRate these antonyms: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!"

   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

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

2. seriousadjective

   of great consequence

   "marriage is a serious matter"

   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

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

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"

   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

   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

4. good, seriousadjective

   appealing to the mind

   "good music"; "a serious book"

   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

   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

5. unplayful, serious, soberadjective

   completely lacking in playfulness

   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

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

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"

   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

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

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

Editors ContributionRate these antonyms:0.0 / 0 votes

1. relaxed

   Submitted by ryan_1 on July 14, 2020  

2. comic

   causing or characterized by extreme distress or sorrow.

   3 idiots was a comic movie while paan singh tomar was tragic

   Submitted by JP03 on October 27, 2014  

How to use serious in a sentence?

1. Hoshiyar Zebari:

   After all these years nobody wants to see a caliphate of hatred. They are no longer an existential threat to our existence. They are still a very very serious threat, how long it will take? I don’t have the crystal ball to tell you. It will take some time. I think we are winning, they are losing.

2. Jose Ramon Elizondo:

   Of course, it's a very serious distortion in the industry, because all the supply chains that use these types of materials are impacted every time they cross the border.

3. European Transport Commissioner Violeta Bulc:

   A toll system can only be compliant with European law if it respects the fundamental treaty principle of non-discrimination, we have serious doubts that this is the case in the final text of the relevant German laws. We are now acting swiftly to clarify these doubts through an infringement procedure in the interest of EU citizens.

4. Susana Almenara:

   We think that as clinicians, it is important to be aware of this phenomenon so as to inform and prevent potentially serious reactions in sensitized patients, we also recommend condom use during treatment with drugs that can induce hypersensitivity responses in partners.

5. Graham Kidner Vickie:

   I think we really shocked them that we were dating and we were immediately serious.

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