stymieverbprevent or hinder the progress ofThe giant wall stymied the boy trying to walk to a certain building.
subjugateverbbring under domination or control, esp. by conquestThe teacher subjugated the class.
sublimeadjectiveof such excellence, grandeur, or beauty as to inspire greatadmiration or aweThe food at that restaurant was sublime.
subtleadjective(esp of a change or distinction) so delicate or precise as to bedifficult to analyze or describeThe color difference between teal and turquoise is very subtle.
succinctadjective(esp of something written or spoken) briefly and clearly expressedHer speech was very short and succinct. Hi.
succornounassistance and support in times of hardship and distressGovernment succor helps people suffering from unemployment.
sumptuousadjectivesplendid and expensive-lookingThe fur coat was looking very sumptuous.
superfluousadjectiveunnecessary, esp. through being more than enoughThere were many superfluous adjectives in my writing. The ridiculously gorgeous person walked casually down the incredibly long path with the brown, big eyed, ﬂuffy dog.
surreptitiousadjectivekept secret, esp. because it would not be approved ofThe couple had a surreptitious meeting in the garden.
sustainverbstrengthen or support physically or mentallyThe girl sustained her willpower to do homework by eating.
sycophantnouna person who acts obsequiously toward someone in order to gainadvantageA sycophant is often hated because of their lack of individuality.
symmetrynounthe quality of being made up of exactly similar parts facing eachotherPerfect symmetry is very pleasing to the eye.
taciturnadjective(of a person) reserved or uncommunicative in speechBeing friends with a taciturn person can be very quiet. ...
tangentnouna completely different line of thought or actionWhile the teacher was lecturing, he went off on a tangent about hischildren.