There are a few synonyms for the word "queasily" that can be used to describe someone who is feeling nauseous or uneasy. Some of the most common synonyms include "nauseated," "sick," "ill," "unsettled," and "uneasy." Other similar words that can be used to describe this feeling include "queasy," "vertiginous," "giddy," and "lightheaded." These words can be used to describe someone who is feeling unwell due to a variety of factors, including motion sickness, food poisoning, or anxiety. No matter what the cause, these synonyms can help you describe a feeling of discomfort or unease in a more precise and descriptive way.