SYN: Fanciful, dreamy, chimerical, baseless, shadowy, imaginary, unreal, fabulous, romantic.
ANT: Actual, real, truthful, sound, substantial, palpable, unromantic, sober, veritable.
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KEY: Vital.
SYN: Living, animate, life-supporting, life-containing, essential, necessary, important, indispensable, inseparable, paramount, material.
ANT: Mortal, lethal, cadaverous, lifeless, inanimate, unessential, unimportant, secondary, separable, immaterial.
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KEY: Vitiate.
SYN: Impair, corrupt, spoil, injure, invalidate, deteriorate, taint.
ANT: Corroborate, confirm, substantiate, justify, vindicate, sanction.