"queasy" in the adjective sense
1. nauseating, nauseous, noisome, queasy, loathsome, offensive, sickening, vile
causing or able to cause nausea
"a nauseating smell"
"a sickening stench"
2. nauseated, nauseous, queasy, sick, sickish
feeling nausea feeling about to vomit
3. anxious, nervous, queasy, uneasy, unquiet
causing or fraught with or showing anxiety
"spent an anxious night waiting for the test results"
"cast anxious glances behind her"
"those nervous moments before takeoff"
"an unquiet mind"
Source: WordNet® (An amazing lexical database of English)
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