| sapid | Having a strong, pleasant taste | |
| sanguine | Optimistic or positive, especially in an apparently bad or difficult situation | |
| sangfroid | Composure or coolness shown in danger or under trying circumstances | |
| salutary | producing a beneficial effect; promoting health | |
| salubrious | Health-giving; healthy | |
| salient | Most noticeable or important | |
| salacious | Having or conveying undue or inappropriate interest in sexual matters | |
| sacrosanct | regarded as too important or valuable to be interfered with | |
| saccharine | Excessively sweet or sentimental | |
| ruminate | To think deeply about something; to meditate or ponder | |