sententious, a. terse, [pithy], laconic, epigrammatic.
sentient, a. [sensitive], perceptive, [conscious], [susceptible]. Antonyms: insentient, insusceptible.
sentiment, n. [thought], [feeling]; [judgment], [notion], [opinion]; [maxim], [saying], toast; [sensibility], susceptibility.
sentimental, a. [romantic], impressible, emotional, [lackadaisical]. Antonyms: [unsentimental], [matter-of-fact], pragmatical.
sentinel, n. [guard], sentry, [watchman], [picket], vidette, perdue. Associated word: cordon.
separable, a. [divisible], detachable, severable, [partible]. Antonym: [inseparable].
separate, v. [divide], [dissolve], [detach], sunder, [sever], [disconnect], [part], disjoin, [withdraw], [rend], dissociate, [disengage], [isolate], disunite, eliminate, disintegrate, segregate, [scatter], [disperse], dissipate, sequester, [cleave], insulate, dissever, deglutinate.
separate, a. detached, [disconnected], disjoined, separated, apart, distinct, [isolated], segregated, disunited, severed, withdrawn.
separation, n. [division], segregation, disunion, [disconnection], sequestration, disjunction, [dissolution], disengagement, disintegration, insulation, [isolation], [rupture], dissociation, divorce, analysis, decomposition, [detachment], demarcation, severance, [partition], deglutination.
separatist, n. [nonconformist], [dissenter], sectary, [schismatic].