2. (verb)grave, sedate, sober, solemn dignified and somber in manner or character and committed to keeping promises "a grave God-fearing man"; "a quiet sedate nature"; "as sober as a judge"; "a solemn promise"; "the judge was solemn as he pronounced sentence"
3. (verb)sedate, calm, tranquilize, tranquillize, tranquillise cause to be calm or quiet as by administering a sedative to "The patient must be sedated before the operation"
Definition of 'sedate'
Webster Dictionary
1. (adj)sedate undisturbed by passion or caprice; calm; tranquil; serene; not passionate or giddy; composed; staid; as, a sedate soul, mind, or temper
Definitions of sedate 
Afrikaans: sedig
Arabic: رَزين، رَصين
Bulgarian: улегнал
Brazilian: calmo
Czech: rozvážný
German: gesetzt
Danish: adstadig
Greek: σοβαρός, γαλήνιος, αξιοπρ
Spanish: tranquilo, sereno, sosega
Estonian: vaoshoitud
Farsi: متين؛آرام
Finnish: hillitty
French: posé
Hebrew: שָלֵיו
Hindi: शान्त, गम्भीर
Croatian: miran, staložen
Hungarian: higgadt
Indonesian: tenang
Icelandic: hæglátur, alvörugefinn
Italian: posato
Japanese: 落着いた
Korean: 차분한
Lithuanian: orus, rimtas, solidus
Latvian: mierīgs; nosvērts; cienīg
Malay: tenang
Dutch: bedaard
Norwegian: sindig, stø
Polish: stateczny
Persian: متين؛آرام
Pashto: چپ، اّرام، غلى، دروند، سن
Portuguese: calmo
Romanian: calm, liniştit
Russian: степенный, уравновешенный
Slovak: pokojný, rozvážny, vyrovn
Slovenian: umirjen
Serbian: staložen
Swedish: stillsam, lugn, sansad
Thai: สงบ; เต็มไปด้วยความเยือกเ
Turkish: ağır başlı, sakin
Taiwanese: 平靜的，穩重的
Ukrainian: стриманий; спокійний
Urdu: پرو سکون، با وقار، سنجیدہ
Vietnamese: điềm tĩnh, bình thản
Chinese: 庄重的，安静的，稳重的
