Synthesized adverbs are provided in this article. The words listed here are commonly found along with the verb synthesized in sentences. This reference page helps answer the question what are some adverbs that describe or modify the verb SYNTHESIZED.
artificially, chemically
directly, easily
newly, recently
successfully, usually
Hope this word list had the synthesized adverb you were looking for. In addition to adverbs used with synthesized, other example verb adverb pairings can be found on this site.
You can help by adding more adverbs in the comments. Thanks.