Robuta

https://www.merriam-webster.com/thesaurus/amelioratory AMELIORATORY Synonyms: 43 Similar and Opposite Words | Merriam-Webster Thesaurus Synonyms for AMELIORATORY: supportive, constructive, ameliorative, lucrative, gainful, desirable, remunerative, healthful; Antonyms of AMELIORATORY: bad,... opposite wordsmerriam webstersynonymssimilarthesaurus