NAUSEOUS Meaning of NAUSEOUS in English ■ adjective1》 affected with nausea. 2》 causing nausea; offensive to the taste or smell.Derivatives~ly adverb~ness noun OriginC17: from L. nauseosus (from nausea 'seasickness'). Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004