- Spot-on Adj Adv
- Spotlessly Adv
- Spottily Adv
- Sprightly Adj Adv
- Springily Adv
- Sprucely Adv
- Spryly Adv
- Spumily Adv
- Spunkily Adv
- Spuriously Adv
- Sputteringly Adv
- Squalidly Adv
- Squarely Adv
- Squarewise Adv
- Squatly Adv
- Squeakily Adv
- Squeamishly Adv
- Squiffily Adv
- Stably Adv
- Staccato Adj Adv Noun
- Stagewise Adj Adv
- Staggeringly Adv
- Stagily Adv
- Stagnantly Adv
- Staidly Adv
- Stainlessly Adv
- Stalely Adv
- Stalkily Adv
- Stalwartly Adv
- Stammeringly Adv
- Stanchly Adv
- Standardly Adv
- Standoffishly Adv
- Starchily Adv
- Staringly Adv
- Starkly Adv
- Startlingly Adv
- Statedly Adv
- Stateside Adj Adv
- Statewide Adj Adv
- Statically Adv
- Statistically Adv
- Statutably Adv
- Statutorily Adv
- Staunchly Adv
- Steadfastly Adv
- Steadily Adv
- Stealthily Adv
- Steamily Adv
- Steeply Adv
- Stellarly Adv
- Stellately Adv
- Stenographically Adv
- Step-by-step Adj Adv
- Stepwise Adj Adv
- Stereographically Adv
- Stereophonically Adv
- Stereoscopically Adv
- Stereospecifically Adv
- Stereotactically Adv