incerto angolul

doubtful▼(experiencing or showing doubt)
adjective
[UK: ˈdaʊt.fʊl] [US: ˈdaʊt.fəl]

uncertain▼(not known for certain; questionable)
adjective
[UK: ʌn.ˈsɜːt.n̩] [US: ʌn.ˈsɝː.tn̩]