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Learn to pronounce se·ri·ous

/ˈsirēəs/
adjective
  1. (of a subject, state, or activity) demanding careful consideration or application.
    "marriage is a serious matter"
    synonyms: important, significant, consequential, of consequence, momentous, of moment, key, grave, weighty, far-reaching, major, urgent, pressing, crucial, critical, vital, life-and-death, high-priority, no joke, no laughing matter, careful, detailed, in-depth, deep, profound, meaningful
  2. acting or speaking sincerely and in earnest, rather than in a joking or halfhearted manner.
    "actors who are serious about their work"
    synonyms: in earnest, earnest, sincere, wholehearted, genuine, meaning what one says, committed, firm, resolute, resolved, determined
  3. significant or worrying because of possible danger or risk; not slight or negligible.
    "she escaped serious injury"
    synonyms: severe, grave, bad, critical, acute, alarming, worrying, grievous, dreadful, terrible, dire, extreme, dangerous, perilous, precarious, parlous
  4. substantial in terms of size, number, or quality.
    "he suddenly had serious money to spend"
    synonyms: considerable, sizeable, substantial, appreciable, significant, goodly, tolerable, fair, reasonable, tidy, hefty, handsome, comfortable, decent, worthwhile, worth having, worth taking into account, ample, plentiful, abundant, superabundant, great, large, lavish, profuse, generous, marked, noticeable, not to be sneezed at, OK, plenteous

People also ask
8 days ago · serious, grave, solemn, sedate, staid, sober, earnest mean not light or frivolous. serious implies a concern for what really matters.
SERIOUS meaning: 1. severe in effect; bad: 2. very ill 3. not joking or intended to be funny: . Learn more.
being in earnest; sincere; not trifling: His interest was serious. Antonyms: trifling, frivolous.
serious from www.collinsdictionary.com
serious in American English · 1. of, showing, having, or caused by earnestness or deep thought; earnest, grave, sober, or solemn. a serious person · 2. a. · 3.
Serious Eats is the destination for delicious food, with definitive recipes, trailblazing science, and essential guides to eating and knowing all about the ...
/ˈsɪriəs/ · adjective. of great consequence · adjective. requiring effort or concentration; complex and not easy to answer or solve · adjective. completely ...
SERIOUS meaning: 1 : having an important or dangerous possible result; 2 : involving or deserving a lot of thought, attention, or work.