Loomed adverbs are provided in this article. The words listed here are commonly found along with the verb loomed in sentences. This reference page helps answer the question what are some adverbs that describe or modify the verb LOOMED.
darkly, dimly
directly, menacingly
ominously, suddenly
Hope this word list had the loomed adverb you were looking for. In addition to adverbs used with loomed, other example verb adverb pairings can be found on this site.
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