- observed or done according to ritual or tradition: said esp. of religious holidays, rites, etc.
- sacred in character
- according to strict form; formal: a solemn ceremony
- serious or grave: a solemn face
- deeply earnest; very sincere: a solemn oath
- very impressive or arousing feelings of awe because of its great importance or seriousness: a solemn occasion
- somber because dark in color
Origin of solemnMiddle English solemne from Old French from Classical Latin sollemnis, sollennis, yearly, annual, hence religious, solemn (from associated, association with annual religious festivals) from sollus, all, entire from Oscan, akin to Classical Latin salvus (see safe) + uncertain or unknown; perhaps annus, year