impeccable, flawless
A camisa branca dele estava impecável mesmo no fim do dia.
His white shirt was immaculate even at the end of the day.
Ela estava vestido de forma impecável como sempre.
She was impeccably dressed, as always.
Nada de visitas até estar tudo impecável!
No visits allowed until everything is spotless!
— A Experiência (2001)
Tudo tem que ser perfeito, impecável.
Everything has to be perfect, flawless.
— Pacto de Sangue (1944)