Synonyms and Antonyms of serious (sîrē-əs)

grave severe earnest momentous pressing dangerous heavy dire critical intense somber alarming grim grievous businesslike crucial intent reflective life-threatening sedate determined solemn humorless life-and-death saturnine sober staid difficult hard demure unfunny weighty unplayful laborious no-nonsense tough thoughtful sobersided arduous good unsmiling uphill deep ernest unamusing austere pensive tall

unimportant trivial light frivolous lighthearted flippant minor unserious cheerful happy funny

important disturbing deliberate catastrophic damaging significant fatal seriously work horrendous devastating easy worrying persistent attitude help

serious ₇

issuer ₆ osiers ₆ rouses ₆ seisor ₆ serous ₆ sieurs ₆ souser ₆

euros ₅ issue ₅ osier ₅ ourie ₅ rises ₅ risus ₅ roses ₅ roues ₅ rouse ₅ ruses ₅ sieur ₅ sires ₅ sores ₅ sorus ₅ sours ₅ souse ₅ suers ₅ users ₅

eros ₄ euro ₄ ires ₄ ores ₄ oses ₄ ours ₄ reis ₄ rise ₄ roes ₄ rose ₄ roue ₄ rues ₄ ruse ₄ seis ₄ sers ₄ sire ₄ sirs ₄ sore ₄ sori ₄ sour ₄ sous ₄ sris ₄ suer ₄ sues ₄ sure ₄ user ₄ uses ₄

ers ₃ ess ₃ ire ₃ oes ₃ ore ₃ ors ₃ ose ₃ our ₃ rei ₃ res ₃ roe ₃ rue ₃ sei ₃ ser ₃ sir ₃ sis ₃ sos ₃ sou ₃ sri ₃ sue ₃ sus ₃ use ₃

er ₂ es ₂ is ₂ oe ₂ oi ₂ or ₂ os ₂ re ₂ si ₂ so ₂ us ₂