queasy in WordNet English dictionary

1. 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"
   anxious  nervous  queasy  uneasy  unquiet 
   
2. causing or able to cause nausea
   "a nauseating smell"; "nauseous offal"; "a sickening stench"
   nauseating  nauseous  noisome  queasy  loathsome  offensive  sickening  vile 
   
3. feeling nausea; feeling about to vomit
   nauseated  nauseous  queasy  sick  sickish