The best replacement for antecedents is precedents.

The best alternatives to antecedents are rated as following:
★★★★★  precedents
★★★  consequences

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Speaking about antecedents, one probably shouldn't forget about pronouns.

Other search terms related to antecedents and their ratings are:
★★★★★ pronouns
★★ conditionals
★★ indefinite pronouns
★ personal pronouns
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antecedents
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