Synonyms of solemn in English:

solemn

adjective

  • 1 a solemn occasion
    [Antonyms] frivolous
  • 2 he looked very solemn
    serious, grave, sober, somber, unsmiling, stern, grim, dour, humorless; pensive, meditative, thoughtful
    [Antonyms] lighthearted
  • 3 a solemn promise
    sincere, earnest, honest, genuine, firm, heartfelt, wholehearted, sworn
    [Antonyms] insincere
  • Definition of solemn in:

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    Word of the day neoteny
    Pronunciation: niːˈɒt(ə)ni
    noun
    retention of juvenile features in the adult animal