úprimný znamená v Angličtina

frank [franker, frankest]▼(bluntly honest)
adjective
[UK: fræŋk] [US: ˈfræŋk]

sincere [sincerer, sincerest]▼(earnest)
adjective
[UK: sɪn.ˈsɪə(r)] [US: ˌsɪn.ˈsɪr]

best regards▼(polite closing of a letter)
noun
[UK: best rɪ.ˈɡɑːdz] [US: ˈbest rɪ.ˈɡɑːrdz]