SYN: Agitate, weaken, oscillate, totter, convulse, loosen, tremble, jar, quiver, shiver.
ANT: Secure, fix, fasten, strengthen, stabilitate, confirm, stand.
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KEY: Shallow.
SYN: Shoal, slight, flimsy, trifling, simple, superficial, unprofound.
ANT: Deep, profound.
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KEY: Sham.
SYN: Phantom, ghost, delusion, illusion, mockery, shadow, pretence, counterfeit, unreality.
ANT: Substance, reality, verity, substantiality, truth.