Hope this list of synonyms for extensive proved helpful. This post may be useful to those searching to find another word for extensive, extensive synonym, and synonyms for extensive.
The synonym field has been valuable to the users of the RTECS database. Many chemicals have been known by various names. The names originate from use of different chemical nomenclature systems, common names, foreign names, and often trade names. A user often knows only a single name. Since RTECS maintains an extensive synonym field, users can access the appropriate records when searching RTECS.