NAUSEOUS
nauseated, nauseous, queasy, sick, sickish
(adjective) feeling nausea; feeling about to vomit
nauseating, nauseous, noisome, queasy, loathsome, offensive, sickening, vile
(adjective) causing or able to cause nausea; “a nauseating smell”; “nauseous offal”; “a sickening stench”
Source: WordNet® 3.1
Etymology
Adjective
nauseous (comparative more nauseous, superlative most nauseous)
Causing nausea; sickening or disgusting.
(sometimes, proscribed) Afflicted with nausea; sick.
Synonyms
• nauseating - causing disgust rather than nausea
Source: Wiktionary
Nau"seous, a. Etym: [L. nauseosus.]
Definition: Causing, or fitted to cause, nausea; sickening; loathsome;
disgusting; exciting abhorrence; as, a nauseous drug or medicine.
– Nau"seous*ly, adv.
– Nau"seous*ness, n.
The nauseousness of such company disgusts a reasonable man. Dryden.
Source: Webster’s Unabridged Dictionary 1913 Edition