se·ri·ous /ˈsɪriəs/
 (a.)嚴肅的;嚴重的,危急的;認真的,不是開玩笑的
 se·ri·ous /ˈsɪrɪəs/ 形容詞
 嚴重的,認真的
 Se·ri·ous a.
 1. Grave in manner or disposition; earnest; thoughtful; solemn; not light, gay, or volatile.
    He is always serious, yet there is about his manner a graceful ease.   --Macaulay.
 2. Really intending what is said; being in earnest; not jesting or deceiving.
 3. Important; weighty; not trifling; grave.
    The holy Scriptures bring to our ears the most serious things in the world.   --Young.
 4. Hence, giving rise to apprehension; attended with danger; as, a serious injury.
 Syn: -- Grave; solemn; earnest; sedate; important; weighty. See Grave.
 -- Se*ri*ous*ly, adv. -- Se*ri*ous*ness, n.
 ◄ ►
 serious
      adj 1: 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!" [ant: frivolous]
      2: of great consequence; "marriage is a serious matter"
      3: 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" [syn: dangerous, grave, grievous,
          severe, life-threatening]
      4: appealing to the mind; "good music"; "a serious book" [syn:
         good]
      5: completely lacking in playfulness [syn: unplayful, sober]
         [ant: playful]
      6: requiring effort or concentration; complex and not easy to
         answer or solve; "raised serious objections to the
         proposal"; "the plan has a serious flaw"