| Word | Definitions | Synonyms |
|---|---|---|
| serenely | (adverb) in a peacefully serene manner | - |
| serially | (adverb) in a serial manner | - |
| seriatim | (adverb) in a series; point by point | - |
| seriously | (adverb) in a serious manner | Synonyms: earnestly, in earnest |
| (adverb) to a severe or serious degree | Synonyms: badly, gravely, severely | |
| servilely | (adverb) in an obsequious manner | Synonyms: obsequiously, subserviently |