оптимален angolul

optimal▼(the best)
adjective
[UK: ˈɒp.tɪm.l̩] [US: ˈɑːp.təm.l̩]

optimum▼(best or most advantageous)
adjective
[UK: ˈɒp.tɪ.məm] [US: ˈɑːp.tə.məm]