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KEY: Astray.
SYN: Loose, abroad, missing, about, at large, wrong, erring, wandering.
ANT: Right, close, at home, safe.
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KEY: Astute.
SYN: Crafty, shrewd, knowing, sharp, discriminating, sagacious, penetrating, acute, discerning, keen.
ANT: Dull, unobserving, undiscriminating, stolid, asinine, anserine, blind.
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KEY: Asunder.