sang-froid, n. coolness, calmness, composure, cool-headedness, countenance; self-possession, self-control, self-restraint, presence of mind; poise, equanimity, equilibrium, balance, aplomb; imperturbability, dispassion, dispassionateness, Inf. unflappability, unexcitability; nerve, cool, cool under fire, steadiness, unshakableness, steady hand.
sanguinary, adj. 1. bloody, gory, ensanguined, sanguine, sanguineous, sanguinolent; bloodshot, bloodstained, blood-drenched, blood-soaked, bloodied.
2. bloodthirsty, murderous, slaughterous, killing, cutthroat, homicidal, fell, grim, brutal, cold-blooded; savage, cruel, barbarous, inhuman, ferocious; harsh, ruthless, remorseless, unmerciful, unpitying, heartless, soulless.
sanguine, adj. 1. buoyant, lively, spirited, elated, zestful; hopeful, expectant, anticipatory; confident, optimistic, reassured, assured; happy, blithe, warm, sunny, light-hearted, bright, exultant; enthusiastic, zealous, ardent, fervid.
2. reddish, rubescent, rufescent, rubicund; ruddy, russet, rusty, brick-red, lateritious; red-faced, flushed, glowing, blooming, inflamed, red, feverish; florid, blowzy, sunburned, burnt; salmon, pink, coral, rosy, roseate.
3. bloody, blood-stained, gory, ensanguined. See - sanguinary (def 1.).
4. red, blood-red, bloodlike, crimson, incarnadine, scarlet, vermilion; vinaceous, claret-colored, wine-colored, port, cherry, amaranthine, murrey; cardinal, carmine, Tyrian, Heraldry, gules, ruby, stammel; lobster-red, fire engine-red, beet-red, strawberry.
sanitary, adj. 1. clean, cleanly, hygienic, antiseptic, germ-free; sterile, pure, prophylactic, disinfected, decontaminated, aseptic; unpolluted, harmless, innoxious, innocuous, hurtless, uninjurious; uninfected, immunized, uninfectious, vaccinated, inoculated; chlorinated, boiled, pasteurized.
2. healthy, healthful, salutary, salubrious, Hygeian; wholesome, health-promoting, sanitarian; beneficial, benign, good; tonic, refreshing, constitutional, bracing.
sanitation, n. 1. hygienics, hygiology, cleanliness, prophylaxis, preventive medicine, preventive dentistry. 2. sterilization, antisepsis, disinfection, chlorination, decontamination; immunization, inoculation, vaccination, pasteurization.
sanity, n. 1. mental normality, normalcy, rationality, reason, reasonableness, sense, intelligence; sobriety, coherence, saneness, healthy mind, Inf. right mind; balance, level-headedness, sober-mindedness; lucidity, clear-headedness; mental health, mental hygiene; cogency, perspicuity, perspicacity, perceptiveness, astuteness, acuity.
2. judiciousness, sagacity, wisdom, sageness, sapience; practicality, pragmatism, coolness, cool-headedness; common sense, Inf. horse sense, prudence, polity, judgment; discrimination, discretion, thoughtfulness.
sap1, n. 1. juice, fluid, life fluid, Archaic, lymph; milk, blood, lifeblood, Class. Myth, ichor.
2. Slang, fool, dupe, gull, gudgeon, Inf. chump, SI. schnook, SI. schlemiel, sitting duck, easy mark, Inf. sucker, SI. patsy, U.S. SI. fall guy, SI. pushover, SI. jerk.
sap2, v. undermine, weaken, impair, enfeeble, reduce; deplete, exhaust, wear, enervate, drain, bleed, milk, rob; invalidate, debilitate, cripple; destroy, ruin, sabotage, subvert; devastate, despoil, blight.