Merriam-Webster Online Dictionary
solemn (adjective)1.
marked by the of a religious - invocation sanction a solemn oath
2.
marked by the observance of established form or ceremony , specifically celebrated with full liturgical ceremony
3.
a) awe-inspiring - sublime solemn beauty
b) marked by grave sedateness and sobriety - earnest a solemn gathering
c) - somber gloomy a solemn gray building serious
Merriam-Webster Online Thesaurus
solemn (adjective)1.
having or showing a formal and serious or reserved manner
SYNONIMS:
august, distingué, distinguished, imposing, portly, solemn, staid, statelyRELATED WORDS:
decorous, proper, seemly; grave, grim, po-faced [], sober, somber ( sombre); aristocratic, elegant, elevated, handsome, lordly, magisterial, majestic, nobleNEAR ANTONYMS:
coarse, crass, crude, improper, indecent, uncouth, unseemly, vulgar2.
not joking or playful in mood or manner
SYNONIMS:
earnest, grave, humorless, no-nonsense, po-faced, sedate, severe, sober, sobersided, solemn, staid, uncomic, unsmiling, weightyRELATED WORDS:
harsh, stern, strict; businesslike, professional; dignified, distinguished, elevated, serious-minded; gloomy, grimNEAR ANTONYMS:
antic, comic, comical, droll, farcical, funny, hilarious, hysterical ( hysteric), laughable, light, light-headed, ludicrous, ridiculous, riotous, risible, screaming, sidesplitting, uproarious; featherbrained, flighty, frivolous, goofy, harebrained, lighthearted, puerile, scatterbrained; absurd, asinine, balmy, brainless, cockeyed, crazy, cuckoo, daffy, daft, dotty, fatuous, foolish, half-witted, insane, jerky, kooky ( kookie), loony ( looney), lunatic, mad, nonsensical, nutty, preposterous, sappy, screwball, senseless, silly, unwise, wacky ( whacky), weak-minded, witless, zany3.
causing or marked by an atmosphere lacking in cheer
SYNONIMS:
black, bleak, cheerless, chill, Cimmerian, cloudy, cold, comfortless, dark, darkening, depressing, depressive, desolate, dire, disconsolate, dismal, drear, dreary, dreich, elegiac ( elegiacal), forlorn, funereal, glum, godforsaken, gray ( grey), lonely, lonesome, lugubrious, miserable, morbid, morose, murky, plutonian, saturnine, sepulchral, solemn, somber ( sombre), sullen, sunless, tenebrific, tenebrous, wretchedRELATED WORDS:
blue, dejected, depressed, despondent, disconsolate, down, droopy, hangdog, inconsolable, low, melancholic, melancholy, mirthless, sad, unhappy, woebegone, woeful; dim, discomfiting, discouraging, disheartening, dismaying, dispiriting, distressful, distressing, upsetting; desperate, hopeless, pessimistic; lamentable, mournful, plaintive, sorrowful; colorless, drab, dull; dour, grim, lowering ( louring), lowery ( loury), menacing, negative, oppressive, threateningNEAR ANTONYMS:
blithe, blithesome, buoyant, gay, jocund, jolly, joyful, joyous, merry, mirthful; encouraging, hopeful, optimistic; lighthearted, lightsome