Solemn

впе́чатлив

vpéčatliv

(inspiring serious feelings or thoughts; sombrely impressive)

све́чен

svéčen

(of or pertaining to religious ceremonies and rites)

све́чен

svéčen

(characterized by or performed with appropriate or great ceremony or formality)

свет

svet

(religious in nature — see also sacred)

серио́зен

seriózen

(deeply serious and sombre)

тр́жествен

tŕžestven

(characterized by or performed with appropriate or great ceremony or formality)