impeccable, flawless, perfect
It’s impeccable, to be sure.
— The Garden of Sinners, film 5 : Spirale contradictoire (2008)
Tout aurait été impeccable à votre retour.
Everything would have been perfect upon your return.
— Le Loup de Wall Street (2013)
Your English is impeccable.
À présent, tout est impeccable.
Now everything is perfect.
His swing is impeccable.
Your Tamazight is impeccable.