Synonyms for «strong precedent»

Synonyms for individual words can be found below.

There is strong precedent for public access to legislative support agency documents. (congressionaldata.org)
There is strong precedent for the effectiveness of these devices, and they're effective here too. (rogerebert.com)
Are we in contestable grey area here, or is there strong precedent in your favor? (professorbainbridge.com)
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