SYN: Limited, narrow, restricted.
ANT: Limitless, ample, unconfined.
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KEY: Circumspect.
SYN: Cautious, wary, careful, heedful, attentive, prudent, watchful, scrupulous, vigilant.
ANT: Heedless, incautious, careless, reckless, invigilant, incircumspect.
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KEY: Circumstance.
SYN: Detail, feature, point, event, occurrence, incident, situation, position, fact, topic, condition, particular, specialty.
ANT: Deed, case, transaction.