This is the 11868th most frequent Portuguese word.
promissores
Promissores: Promising.
Here, 'promissores' is used as an adjective describing 'tratamentos'. It conveys the idea that the treatments hold potential and hope for achieving success.
Os cientistas estão desenvolvendo tratamentos promissores para doenças raras.
Scientists are developing promising treatments for rare diseases.
In this sentence, 'promissores' is again an adjective modifying 'os jovens talentos'. It describes the potential of the young talents to excel in their field.
Ela acredita que os jovens talentos na música são muito promissores.
She believes that young talents in music are very promising.
Here, 'promissoras' is used as the feminine plural form of 'promissor' to agree with 'startups'. It highlights the promising nature and potential success of these startups.