Adding adverbs are provided in this article. The words listed here are commonly found along with the verb adding in sentences. This reference page helps answer the question what are some adverbs that describe or modify the verb ADDING.
actually, approximately, automatically, carefully, cautiously, considerably, constantly
continually, continuously, daily, eventually, finally, generally, gradually
greatly, hastily, immediately, immensely, largely, manually, materially
mentally, merely, nearly, occasionally, possibly, potentially, presently
probably, quickly, rapidly, really, significantly, simply, slowly
steadily, substantially, successively, usually
Hope this word list had the adding adverb you were looking for. In addition to adverbs used with adding, other example verb adverb pairings can be found on this site.
You can help by adding more adverbs in the comments. Thanks.