265. Ribald, Vulgar

Ribald: Indecently humorous
Vulgar: Crude

266. Sagacious, Wise

Wise: Showing judgment

267. Salient, Prominent

Salient: Most noticeable
Prominent: Standing out

268. Sardonic, Mocking

Sardonic: Grimly mocking
Mocking: Derisive

269. Scintillating, Brilliant

Scintillating: Sparkling or lively
Brilliant: Exceptionally bright

270. Scrutinize, Examine

Scrutinize: Inspect closely
Examine: Look carefully

271. Seditious, Subversive

Seditious: Inciting rebellion
Subversive: Undermining authority

272. Serendipity, Chance

Serendipity: Lucky discovery
Chance: Accidental occurrence

273. Soporific, Sleep-inducing

Soporific: Causing sleep
Sleep-inducing: Promoting sleep

274. Specious, Deceptive

Specious: Appearing true but false
Deceptive: Misleading

275. Spontaneous, Impulsive

Spontaneous: Done naturally
Impulsive: Acting without thought

276. Stentorian, Loud

Stentorian: Very powerful voice
Loud: High volume